Fine-tune releasing instructions (#8384)

Author: trask

.github/scripts/markdown-link-check-config.json

@@ -1,15 +1,18 @@
 {
-  "retryOn429" : true,
-  "aliveStatusCodes" : [
+  "retryOn429": true,
+  "aliveStatusCodes": [
     200,
     403
   ],
-  "ignorePatterns" : [
+  "ignorePatterns": [
     {
-      "pattern" : "https://github.com/open-telemetry/opentelemetry-java-instrumentation/network/updates"
+      "pattern": "https://github.com/open-telemetry/opentelemetry-java-instrumentation/network/updates"
     },
     {
-      "pattern" : "^https://kotlinlang\\.org/docs/coroutines-overview\\.html$"
+      "pattern": "^https://github.com/open-telemetry/opentelemetry-java-contrib/pulls/app%2Fdependabot$"
+    },
+    {
+      "pattern": "^https://kotlinlang\\.org/docs/coroutines-overview\\.html$"
     }
   ]
 }

RELEASING.md

@@ -18,8 +18,12 @@ the second Monday of the month (roughly a few of days after the monthly minor re
 
 ## Preparing a new major or minor release
 
-* Check that [dependabot has run](https://github.com/open-telemetry/opentelemetry-java-instrumentation/network/updates)
-  sometime in the past day (this link is only accessible if you have write access to the repository).
+* Check that
+  [dependabot has run](https://github.com/open-telemetry/opentelemetry-java-instrumentation/network/updates)
+  sometime in the past day (this link is only accessible if you have write access to the
+  repository), and check that all
+  [dependabot PRs](https://github.com/open-telemetry/opentelemetry-java-contrib/pulls/app%2Fdependabot)
+  have been merged.
 * Close the [release milestone](https://github.com/open-telemetry/opentelemetry-java-instrumentation/milestones)
   if there is one.
 * Merge a pull request to `main` updating the `CHANGELOG.md`.