Remove HashiCorp specific GPG signing from release

.github/workflows/release.yml

@@ -48,16 +48,18 @@ jobs:
       - name: Describe plugin
         id: plugin_describe
         run: echo "api_version=$(go run . describe | jq -r '.api_version')" >> "$GITHUB_OUTPUT"
-      - name: Install signore
-        uses: hashicorp/setup-signore-package@v1
+      - name: Import GPG key
+        id: import_gpg
+        uses: crazy-max/ghaction-import-gpg@111c56156bcc6918c056dbef52164cfa583dc549 # v5.2.0
+        with:
+          gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
+          passphrase: ${{ secrets.GPG_PASSPHRASE }}
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@f82d6c1c344bcacabba2c841718984797f664a6b # v4.2.0
         with:
           version: latest
           args: release --clean --timeout 120m
         env:
+          GPG_FINGERPRINT: ${{ steps.import_gpg.outputs.fingerprint }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           API_VERSION: ${{ steps.plugin_describe.outputs.api_version }}
-          SIGNORE_CLIENT_ID: ${{ secrets.SIGNORE_CLIENT_ID }}
-          SIGNORE_CLIENT_SECRET: ${{ secrets.SIGNORE_CLIENT_SECRET }}
-          SIGNORE_SIGNER: ${{ secrets.SIGNORE_SIGNER }}

.goreleaser.yml

@@ -91,10 +91,16 @@ checksum:
   name_template: '{{ .ProjectName }}_v{{ .Version }}_SHA256SUMS'
   algorithm: sha256
 signs:
-  - cmd: signore
-    args: ["sign", "--dearmor", "--file", "${artifact}", "--out", "${signature}"]
-    artifacts: checksum
-    signature: ${artifact}.sig
-
+  - artifacts: checksum
+    args:
+      # if you are using this is in a GitHub action or some other automated pipeline, you
+      # need to pass the batch flag to indicate its not interactive.
+      - "--batch"
+      - "--local-user"
+      - "{{ .Env.GPG_FINGERPRINT }}"
+      - "--output"
+      - "${signature}"
+      - "--detach-sign"
+      - "${artifact}"
 changelog:
   use: github-native