fix: exclude merge_group events from full-tier CI jobs

The e2e-full, yarn-berry-full, and cargo-vex-matrix-full jobs should skip
merge_group events (GitHub's merge queue) along with pull_request events.
These jobs run the nightly full matrices and should not run in the merge
queue, which is intended to use the same PR-tier job set.

Changed the condition from 'github.event_name != pull_request' to explicitly
exclude both pull_request and merge_group events, preventing ~40 extra test
legs from running in the merge queue.

Author: cursoragent

.github/workflows/ci.yml

@@ -1699,7 +1699,7 @@ jobs:
   # v5 landings, the nightly schedule and dispatch run them with the `e2e`
   # steps.
   e2e-full:
-    if: github.event_name != 'pull_request' || github.head_ref == 'release/v5-prerelease'
+    if: (github.event_name != 'pull_request' && github.event_name != 'merge_group') || github.head_ref == 'release/v5-prerelease'
     needs: [test, coverage, e2e-build]
     strategy:
       fail-fast: false
@@ -1920,7 +1920,7 @@ jobs:
   # Skipped on pull_request (except v5 landings), like e2e-full.
   yarn-berry-full:
     name: yarn-berry ${{ matrix.yarn }} (${{ matrix.os }})
-    if: github.event_name != 'pull_request' || github.head_ref == 'release/v5-prerelease'
+    if: (github.event_name != 'pull_request' && github.event_name != 'merge_group') || github.head_ref == 'release/v5-prerelease'
     needs: [test, coverage]
     strategy:
       fail-fast: false
@@ -2012,7 +2012,7 @@ jobs:
 
   cargo-vex-matrix-full:
     name: cargo ${{ matrix.toolchain }} lock-v${{ matrix.lock || 'own' }} (${{ matrix.os }})
-    if: github.event_name != 'pull_request' || github.head_ref == 'release/v5-prerelease'
+    if: (github.event_name != 'pull_request' && github.event_name != 'merge_group') || github.head_ref == 'release/v5-prerelease'
     needs: [test, coverage, e2e-build]
     runs-on: ${{ matrix.os }}
     timeout-minutes: 40