Detect polygerrit test log under either bzlmod or workspace execroot

The polygerrit web_test_runner path lookup used to branch on the
presence of polygerrit-ui/pnpm-lock.yaml to pick between two execroot
layouts:

  pre-bzlmod:  ~/.cache/bazel/.../execroot/gerrit/bazel-out/...
  post-bzlmod: ~/.cache/bazel/.../execroot/_main/bazel-out/...

That detection was indirect — pnpm and bzlmod are unrelated, and the
presence of pnpm-lock.yaml could change for reasons that have nothing
to do with the execroot name. The two branches were also otherwise
identical.

Replace both branches with a single wildcard on the execroot segment
(execroot/*/), which matches `gerrit` and `_main` and any future
rename. Drop the pnpm-lock.yaml check.

Change-Id: I3e667bb6b260ec27f88417cb7a76881e5f583f86

jenkins/gerrit-bazel-cat-test-log.sh

diff --git a/jenkins/gerrit-bazel-cat-test-log.sh b/jenkins/gerrit-bazel-cat-test-log.sh
index 125b188..0b3a27b 100755
--- a/jenkins/gerrit-bazel-cat-test-log.sh
+++ b/jenkins/gerrit-bazel-cat-test-log.sh
@@ -7,12 +7,9 @@
    echo "See test log below"
    echo "=============================="
    echo ""
-   if [ -f gerrit/polygerrit-ui/pnpm-lock.yaml ]
+   if [ -f gerrit/polygerrit-ui/web_test_runner.sh ]
    then
-     cat $(ls ~/.cache/bazel/_bazel_jenkins/*/execroot/_main/bazel-out/*/testlogs/polygerrit-ui/web_test_runner/test.log)
-   elif [ -f gerrit/polygerrit-ui/web_test_runner.sh ]
-   then
-     cat $(ls ~/.cache/bazel/_bazel_jenkins/*/execroot/gerrit/bazel-out/*/testlogs/polygerrit-ui/web_test_runner/test.log)
+     cat $(ls ~/.cache/bazel/_bazel_jenkins/*/execroot/*/bazel-out/*/testlogs/polygerrit-ui/web_test_runner/test.log)
    elif [ -f gerrit/polygerrit-ui/karma_test.sh ]
    then
      cat $(ls ~/.cache/bazel/_bazel_jenkins/*/execroot/gerrit/bazel-out/*/testlogs/polygerrit-ui/karma_test/test.log)