chore: bump graalvm/setup-graalvm from 1.6.0 to 1.6.2 (#2567)

Squash merge of Dependabot bump graalvm/setup-graalvm 1.6.0 to 1.6.2. Reviewed and approved by @phipag, review performed by Claude.

Author: dependabot[bot]

.github/workflows/check-build.yml

@@ -107,7 +107,7 @@ jobs:
             powertools-*/**
             pom.xml
       - name: Setup GraalVM
-        uses: graalvm/setup-graalvm@cabbb10818fabc989d6dbd508e4846596d20dd2d # v1.6.0
+        uses: graalvm/setup-graalvm@186d0493a2df5eb62df5ecc498883d18fd58c303 # v1.6.2
         with:
           # Pinned to 21.0.8 due to unsafeAllocated enforcement in 21.0.10+. See #2416
           java-version: "21.0.8"