Merge pull request #1016 from ihostage/2.10.x-steward

Add tag `[2.10.x]` for Steward's pull requests

.github/scala-steward.conf

@@ -1,9 +1,9 @@
 pullRequests.frequency = "@monthly"
 
-commits.message = "${artifactName} ${nextVersion} (was ${currentVersion})"
+commits.message = "[2.10.x] ${artifactName} ${nextVersion} (was ${currentVersion})"
 
 pullRequests.grouping = [
-  { name = "patches", "title" = "Patch updates", "filter" = [{"version" = "patch"}] }
+  { name = "patches", "title" = "[2.10.x] Patch updates", "filter" = [{"version" = "patch"}] }
 ]
 
 updates.ignore = [