CLD-7841 Optimize E2E testing costs (#27883)

* Utilize free runners for E2E tests, report back to PR on run completion
* Increase test stability on smaller instances
* Merge worker reports
* merge start+prepare steps
* upgrade keycloak
* increase test timeouts
* Add video recording to report artifacts

Co-authored-by: Saturnino Abril <5334504+saturninoabril@users.noreply.github.com>

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Co-authored-by: Saturnino Abril <5334504+saturninoabril@users.noreply.github.com>

e2e-tests/.ci/.e2erc

@@ -93,6 +93,7 @@ export ENABLED_DOCKER_SERVICES_DEFAULT="postgres inbucket"
 export TEST_FILTER_DEFAULT='--stage=@prod --group=@smoke'
 export BRANCH_DEFAULT=$(git branch --show-current || echo -n "unknown")
 export BUILD_ID_DEFAULT=$(date +%s)
+export CI_BASE_URL_DEFAULT="localhost"
 # OS specific defaults overrides
 case $MME2E_OSTYPE in
   darwin )
@@ -111,3 +112,4 @@ export BRANCH_UNSANITIZED=${BRANCH:-$BRANCH_DEFAULT}
 export BRANCH=${BRANCH_UNSANITIZED::50} # The automation dashboard only accepts branch names up to 50 characters
 export BUILD_ID_UNSANITIZED=${BUILD_ID:-$BUILD_ID_DEFAULT}
 export BUILD_ID=${BUILD_ID_UNSANITIZED::64} # The automation dashboard only accepts build IDs up to 64 characters
+export CI_BASE_URL=${CI_BASE_URL:-$CI_BASE_URL_DEFAULT}