Make the PR size check labels only (#24)

See https://github.com/TF-Minecraft/Docs/blob/main/PIPELINES.md#pull-request-size

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

Author: ryanbarlow97

.github/workflows/pr-size.yml

@@ -3,8 +3,6 @@ name: PR size
 on:
   pull_request:
     types: [opened, reopened, synchronize, ready_for_review, converted_to_draft]
-  pull_request_review:
-    types: [submitted, dismissed]
 
 permissions:
   contents: read
@@ -25,4 +23,4 @@ jobs:
         with:
           fetch-depth: 0
           persist-credentials: false
-      - uses: TF-Minecraft/TLibs/.github/actions/pr-size@3d2f19d6c6a20af17402a4c57835c7a40415e8ae
+      - uses: TF-Minecraft/TLibs/.github/actions/pr-size@0bfb259256648c6139c6a94a0935492830cbbec9