Update softprops/action-gh-release action to v2

Author: renovate[bot]

.github/workflows/release.yml

@@ -175,6 +175,6 @@ jobs:
       - name: Upload assets
         # Upload the artifacts to the existing release. Note that the SLSA provenance will
         # attest to each artifact file and not the aggregated ZIP file.
-        uses: softprops/action-gh-release@de2c0eb89ae2a093876385947365aca7b0e5f844 # v0.1.15
+        uses: softprops/action-gh-release@3198ee18f814cdf787321b4a32a26ddbf37acc52 # v2.0.3
         with:
           files: artifacts.zip