restore e2e tests on ubuntu-latest image

[levalleux-ludo]

e2e tests have been failing the 16th/17th of November

Error is revealed when running the meta-tx.test.ts test

FAIL e2e/tests/meta-tx.test.ts
  ● Test suite failed to run

    e2e/tests/meta-tx.test.ts:30:30 - error TS2307: Cannot find module '../../contracts/protocol-contracts/scripts/domain/EvaluationMethod' or its corresponding type declarations.

    30 import EvaluationMethod from "../../contracts/protocol-contracts/scripts/domain/EvaluationMethod";
                                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    e2e/tests/meta-tx.test.ts:31:23 - error TS2307: Cannot find module '../../contracts/protocol-contracts/scripts/domain/TokenType' or its corresponding type declarations.

    31 import TokenType from "../../contracts/protocol-contracts/scripts/domain/TokenType";
                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

However the cause of this error can be found before in the logs:
Npm postinstall step is failing when preparing the test environment:

> core-components@1.0.0 e2e:suite:default
> ./e2e/run-e2e-suite.sh

Install protocol and dependencies...
npm WARN deprecated ganache-core@2.13.2: ganache-core is now ganache; visit https://trfl.io/g7 for details
npm WARN deprecated ganache-core@2.13.2: ganache-core is now ganache; visit https://trfl.io/g7 for details
npm WARN skipping integrity check for git dependency ssh://git@github.com/ProjectOpenSea/seaport.git 
npm WARN deprecated har-validator@5.1.5: this library is no longer supported
npm WARN deprecated uuid@2.0.1: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
npm WARN deprecated uuid@3.4.0: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated testrpc@0.0.1: testrpc has been renamed to ganache-cli, please use this package from now on.
npm WARN deprecated request-promise-native@1.0.9: request-promise-native has been deprecated because it extends the now deprecated request package, see https://github.com/request/request/issues/3142
npm WARN deprecated debug@3.2.6: Debug versions >=3.2.0 <3.2.7 || >=4 <4.3.1 have a low-severity ReDos regression when used in a Node.js environment. It is recommended you upgrade to 3.2.7 or 4.3.1. (https://github.com/visionmedia/debug/issues/797)
npm WARN deprecated debug@3.2.6: Debug versions >=3.2.0 <3.2.7 || >=4 <4.3.1 have a low-severity ReDos regression when used in a Node.js environment. It is recommended you upgrade to 3.2.7 or 4.3.1. (https://github.com/visionmedia/debug/issues/797)
npm WARN deprecated @ensdomains/ens@0.4.5: Please use @ensdomains/ens-contracts
npm WARN deprecated @ensdomains/resolver@0.2.4: Please use @ensdomains/ens-contracts
npm ERR! code 1
npm ERR! path /home/runner/work/core-components/core-components/contracts/node_modules/postinstall-postinstall
npm ERR! command failed
npm ERR! command sh -c -- node ./run.js
npm ERR! error This project's package.json defines "packageManager": "yarn@npm@8.[11](https://github.com/bosonprotocol/core-components/actions/runs/6903347318/job/18786355111#step:10:12).0". However the current global version of Yarn is 1.22.21.
npm ERR! 
npm ERR! Presence of the "packageManager" field indicates that the project is meant to be used with Corepack, a tool included by default with all official Node.js distributions starting from 16.9 and [14](https://github.com/bosonprotocol/core-components/actions/runs/6903347318/job/18786355111#step:10:15).19.
npm ERR! Corepack must currently be enabled by running corepack enable in your terminal. For more information, check out https://yarnpkg.com/corepack.
npm ERR! node:child_process:935
npm ERR!     throw err;
npm ERR!     ^
npm ERR! 
npm ERR! Error: Command failed: yarn run postinstall
npm ERR! error This project's package.json defines "packageManager": "yarn@npm@8.11.0". However the current global version of Yarn is 1.22.21.
npm ERR! 
npm ERR! Presence of the "packageManager" field indicates that the project is meant to be used with Corepack, a tool included by default with all official Node.js distributions starting from [16](https://github.com/bosonprotocol/core-components/actions/runs/6903347318/job/18786355111#step:10:17).9 and 14.[19](https://github.com/bosonprotocol/core-components/actions/runs/6903347318/job/18786355111#step:10:20).
npm ERR! Corepack must currently be enabled by running corepack enable in your terminal. For more information, check out https://yarnpkg.com/corepack.
npm ERR!

Problem has been worked around using the previous version (20.02) of the ubuntu image for the pipeline.
(

core-components/.github/workflows/ci.yaml

Line 41 in a10349b

runs-on: ubuntu-20.04

)
However, a proper fix should be found to avoid staying stuck on this version