chore(deps): update oras-project/setup-oras action to v2

.gitea/workflows/golang-linters.yaml

@@ -26,4 +26,4 @@ jobs:
         go-version: ${{ matrix.go }}
     - uses: golangci/golangci-lint-action@v9.2.0
       with:
-        version: v2.12.1 # renovate: datasource=github-releases depName=golangci/golangci-lint
+        version: v2.12.0 # renovate: datasource=github-releases depName=golangci/golangci-lint

.gitea/workflows/release.yaml

@@ -31,9 +31,9 @@ jobs:
             "https://github.com/anchore/syft/releases/download/v${SYFT_VERSION}/syft_${SYFT_VERSION}_${OS}_${ARCH}.deb"
         dpkg -i syft_${SYFT_VERSION}_${OS}_${ARCH}.deb
         rm syft_${SYFT_VERSION}_${OS}_${ARCH}.deb
-    - uses: volker-raschek/cosign-installer@v4.1.2-rc3
+    - uses: sigstore/cosign-installer@v4.1.1
       with:
-        cosign-release: "v3.0.6" # renovate: datasource=github-tags depName=sigstore/cosign
+        cosign-release: "v2.6.3" # renovate: datasource=github-tags depName=sigstore/cosign
     - uses: docker/setup-qemu-action@v4.0.0
       with:
         image: harbor.cryptic.systems/docker/tonistiigi/binfmt:latest