fix: set @commitlint/config-conventional to exact version 8.2.0

Author: jdbruijn

package.json

@@ -19,7 +19,7 @@
     "@actions/exec": "1.0.1",
     "@actions/github": "1.1.0",
     "@commitlint/config-angular": "8.2.0",
-    "@commitlint/config-conventional": "^8.2.0",
+    "@commitlint/config-conventional": "8.2.0",
     "@commitlint/config-lerna-scopes": "8.2.0",
     "@commitlint/config-patternplate": "8.2.0",
     "@commitlint/format": "8.2.0",