Bump Surnet/get-json-matrix from 1 to 2 (#5)

Bumps [Surnet/get-json-matrix](https://github.com/surnet/get-json-matrix) from 1 to 2.
- [Release notes](https://github.com/surnet/get-json-matrix/releases)
- [Commits](Surnet/get-json-matrix@v1...v2)

---
updated-dependencies:
- dependency-name: Surnet/get-json-matrix
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/weekly-scanner.yaml

@@ -16,7 +16,7 @@ jobs:
 
       - name: Get Matrix
         id: matrix
-        uses: Surnet/get-json-matrix@v1
+        uses: Surnet/get-json-matrix@v2
         with:
           filepath: ./repositories.json