Fine-tune pull request aliases

Author: alcaeus

.evergreen/config.yml

@@ -28,11 +28,17 @@ post:
 # Define aliases for patch builds and PR builds. These only apply if no aliases are defined in project and repo settings
 github_pr_aliases: &github_pr_aliases
   # Run all tasks in PR variants for PHP 8.3
-  - variant_tags: ["php8.3", "pr"]
-    task: ".*"
-  # Run PR tasks for PR variants
-  - variant_tags: ["pr"]
-    task_tags: ["pr"]
+  - variant_tags:
+      - "pr php8.3"
+    task_tags:
+      # Exclude latest as it can cause spontaneous failures
+      - "!latest"
+  # Run PR tasks for all PR variants
+  - variant_tags:
+      - "pr"
+    task_tags:
+      # Only test MongoDB 7.0
+      - "pr 7.0"
 
 commit_queue_aliases: *github_pr_aliases
 

.evergreen/config/generated/test/require-api-version-5.0.yml

@@ -1,6 +1,6 @@
 tasks:
   - name: "test-requireApiVersion-%mongodbVersion%"
-    tags: [ "standalone", "local", "%mongodbVersion%", "versioned_api", "pr", "tag" ]
+    tags: [ "standalone", "local", "%mongodbVersion%", "versioned_api", "tag" ]
     commands:
       - func: "bootstrap mongo-orchestration"
         vars: