9456eca7c5
Adds better caching for browser archives and their extraction. This is done because the archives are currently extracted as a build action and these are actions are invalidated frequently, causing flakiness on the CI and slow-down in local development. Here is an example flaky error on the CI (that surfaces often with RBE execution): ``` ERROR: /home/circleci/.cache/bazel/_bazel_circleci/9ce5c2144ecf75d11717c0aa41e45a8d/external/npm/@angular/dev-infra-private/bazel/browsers/chromium/BUILD.bazel:22:17: Extracting ../org_chromium_chromium_amd64/file/chrome-linux.zip failed: (Exit 34): extract.sh failed: error executing command external/io_bazel_rules_webtesting/web/internal/extract.sh external/org_chromium_chromium_amd64/file/chrome-linux.zip ... (remaining 2 argument(s) skipped). Note: Remote connection/protocol failed with: execution failed ``` We fix this by introducing a new rule that downloads a browser archive and unpacks it directly into a Bazel repository. Before this change, the archive would just be downloaded but extracted later as part of a build action. This is unnecessary and results in less efficient caching as build actions are invalidated more often, especially if developers run `bazel clean` in between. The root cause on why the extraction often fails in RBE containers is unclear. It's unclear why the extacted archive is not cached properly as part of a build action (most likely some hermeticity issue within `rules_webtesting`, but it seems more Bazel-idiomatic to unpack the archives as part of the repository anyway, and this solves the flakiness issue. PR Close #42814
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