fix: update search query in issue-metrics workflow for accurate repository filtering

[skip ci]

Author: SteKoe

.github/workflows/issue-metrics.yml

@@ -47,4 +47,4 @@ jobs:
         uses: github/issue-metrics@v3
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          SEARCH_QUERY: 'spring-boot-admin:codecentric/spring-boot-admin is:issue created:${{ env.last_month }} -reason:"not planned"'
+          SEARCH_QUERY: 'repo:codecentric/spring-boot-admin is:issue created:${{ env.last_month }} -reason:"not planned"'