build: run e2e tests with bazel rbe

[devversion]

• Similar to other Bazel jobs, we should enable remote execution for the e2e tests. These currently build Angular Material in order to serve the e2e-app, so this could slow-down CI. Ideally remote caching would be also accepted, but this will be discussed soon.

Pretty similar to #14867, but decided to make a new PR because the commit message would be off.

[ngbot]

I see that you just added the pr: merge ready label, but the following checks are still failing:
     status "branch-manager" is failing
     status "ci/circleci: bazel_build_test" is pending
     status "ci/circleci: tests_local_browsers" is pending
     status "ci/circleci: tests_saucelabs" is pending
     status "ci/circleci: e2e_tests" is pending
     status "ci/circleci: tests_browserstack" is pending

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If you can't get the PR to a green state due to flakes or broken master, please try rebasing to master and/or restarting the CI job. If that fails and you believe that the issue is not due to your change, please contact the caretaker and ask for help.

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