Bump playwright from 1.9.0 to 1.9.1 in /e2e

Bumps [playwright](https://github.com/Microsoft/playwright) from 1.9.0 to 1.9.1.
- [Release notes](https://github.com/Microsoft/playwright/releases)
- [Commits](microsoft/playwright@v1.9.0...v1.9.1)

Signed-off-by: dependabot[bot] <support@github.com>

e2e/package.json

@@ -20,7 +20,7 @@
     "@types/node": "14.14.31",
     "@types/yargs": "16.0.0",
     "ava": "3.15.0",
-    "playwright": "1.9.0",
+    "playwright": "1.9.1",
     "ts-node": "9.1.1",
     "typescript": "4.2.2"
   }

e2e/yarn.lock

@@ -1537,10 +1537,10 @@ pkg-dir@^4.2.0:
   dependencies:
     find-up "^4.0.0"
 
-playwright@1.9.0:
-  version "1.9.0"
-  resolved "https://registry.yarnpkg.com/playwright/-/playwright-1.9.0.tgz#7876f005b7be08419b03f14a1d9c1504e0db6d37"
-  integrity sha512-vCVPCj6toZweLW2wz9g92FpsmKoLljz6ql1MeqBcVDgOh5yVR/rFdFQ6T+Ed1sqkssaissfSeZMNmTodQCsK3Q==
+playwright@1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/playwright/-/playwright-1.9.1.tgz#b4db35f69076b2dc91e347e58d81f2f391d1ed49"
+  integrity sha512-bZXnks4UGJZoqja6TqVEUG0IQ2liqYFcO1R4lT43aO4oDVTQtawEJjS+EqLYsAuniRFWVE87Cemus4fRQbyXMg==
   dependencies:
     commander "^6.1.0"
     debug "^4.1.1"