Updated exempt lables to include x: labels and improve exercise lables.

.github/workflows/stale.yml

@@ -19,7 +19,14 @@ jobs:
           # Exempt all issues with milestones from being marked as stale.
           exempt-all-issue-milestones: true
 
-          exempt-issue-labels: 'discussion 💬,pinned 📌,enhancement 🦄 ⭐,beginner friendly,maintainer action required❕,on hold ✋🏽'
+          exempt-issue-labels: "x:action/create,x:action/fix,x:action/improve,x:action/proofread,x:action/sync,
+            x:knowledge/none,x:knowledge/elementary,x:knowledge/intermediate,x:knowledge/advanced,x:module/analyzer,
+            x:module/concept,x:module/concept-exercise,x:module/generator,x:module/practice-exercise,x:module/representer,
+            x:module/test-runner,x:size/massive,x:status/claimed,x:type/ci,x:type/coding,x:type/content,x:type/docker,
+            x:type/docs,v3-migration 🤖,bug 🐛,claimed 🐾,discussion 💬,enhancement 🦄 ⭐,first-timers only 🐣
+            , good first issue,good first patch,help wanted,improve documentation 💖,improve exercise 💖,
+            improve reference docs 💖,improve test case 💖,maintainer action required❕,maintainer chore 🔧,
+            new documentation ✨,new exercise ✨,new reference doc ✨,new test case ✨,on hold ✋🏽,pinned 📌"
           stale-issue-label: abandoned 🏚
           stale-issue-message: >
             This issue has been automatically marked as `abandoned 🏚`
@@ -29,8 +36,15 @@ jobs:
           close-issue-message: >
             Closing stale issue. If this issue is still relevant,
             please reopen it.
-          exempt-pr-labels: 'pinned 📌,enhancement 🦄 ⭐,please review 👀,maintainer action required ❕'
+          exempt-pr-labels:  "x:action/create,x:action/fix,x:action/improve,x:action/proofread,x:action/sync,
-          stale-pr-label: abandoned 🏚
+            x:knowledge/none,x:knowledge/elementary,x:knowledge/intermediate,x:knowledge/advanced,x:module/analyzer,
+            x:module/concept,x:module/concept-exercise,x:module/generator,x:module/practice-exercise,x:module/representer,
+            x:module/test-runner,x:size/massive,x:status/claimed,x:type/ci,x:type/coding,x:type/content,x:type/docker,
+            x:type/docs,v3-migration 🤖,bug 🐛,claimed 🐾,discussion 💬,enhancement 🦄 ⭐,first-timers only 🐣
+            , good first issue,good first patch,help wanted,improve documentation 💖,improve exercise 💖,
+            improve reference docs 💖,improve test case 💖,maintainer action required❕,maintainer chore 🔧,
+            new documentation ✨,new exercise ✨,new reference doc ✨,new test case ✨,on hold ✋🏽,pinned 📌"
+          stale-pr-label: 'abandoned 🏚'
           stale-pr-message: >
             This pull request has been automatically marked as `abandoned 🏚`
             because it has not had recent activity. It will be closed if no