add a few companies and a couple of job boards/lists

[site-speed]

• I read CONTRIBUTING.md
• I didn't change README.md (but instead src/data.yaml or src/template.md)

[site-speed]

no idea why but one of the checks failing:

Run EndBug/add-and-commit@v7.1.0 Warning: The set-outputcommand is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-[10](https://github.com/pogopaule/awesome-sustainability-jobs/actions/runs/6151745846/job/16692458427?pr=35#step:7:11)-11-github-actions-deprecating-save-state-and-set-output-commands/ Warning: Theset-outputcommand is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/ Warning: Theset-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-[11](https://github.com/pogopaule/awesome-sustainability-jobs/actions/runs/6151745846/job/16692458427?pr=35#step:7:12)-github-actions-deprecating-save-state-and-set-output-commands/
Running in /home/runner/work/awesome-sustainability-jobs/awesome-sustainability-jobs
Add input parsed as single string, running 1 git add command.

Using 'site-speed site-speed@users.noreply.github.com' as author.
Using "update readme.md via create_readme.py" as commit message.
Running for a PR, the action will use 'main' as ref.
Internal logs
Outputs
Error: Error: Pushing to https://github.com/pogopaule/awesome-sustainability-jobs
remote: Permission to pogopaule/awesome-sustainability-jobs.git denied to github-actions[bot].
fatal: unable to access 'https://github.com/pogopaule/awesome-sustainability-jobs/': The requested URL returned error: 403`