Bump github/issue-metrics from 2 to 3

Bumps [github/issue-metrics](https://github.com/github/issue-metrics) from 2 to 3.
- [Release notes](https://github.com/github/issue-metrics/releases)
- [Commits](github/issue-metrics@v2...v3)

---
updated-dependencies:
- dependency-name: github/issue-metrics
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/pattern-metrics.yaml

@@ -53,7 +53,7 @@ jobs:
         echo "CODEOWNERS_FILTER=$CODEOWNERS_FILTER" >> "$GITHUB_ENV"
 
     - name: Run issue-metrics tool for issues
-      uses: github/issue-metrics@v2
+      uses: github/issue-metrics@v3
       env:
         GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         SEARCH_QUERY: 'repo:InnerSourceCommons/InnerSourcePatterns is:issue created:${{ env.last_month }} -reason:"not planned" ${{ env.CODEOWNERS_FILTER }}'
@@ -66,7 +66,7 @@ jobs:
         mv ./issue_metrics.md ready_to_merge_issues_report.md
 
     - name: Run issue-metrics tool for PRs
-      uses: github/issue-metrics@v2
+      uses: github/issue-metrics@v3
       env:
         GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         SEARCH_QUERY: 'repo:InnerSourceCommons/InnerSourcePatterns is:pr created:${{ env.last_month }} -reason:"not planned" ${{ env.CODEOWNERS_FILTER }}'