ci: use codespell instead of misspell-fixer (cosmos#18686)

Co-authored-by: Marko <[email protected]>

.github/.codespellignore

@@ -0,0 +1,5 @@
+cips
+pullrequest
+keypair
+stStr
+pastTime

.github/workflows/misspell.yml

@@ -2,23 +2,27 @@ name: Fix typos nightly
 
 on:
   schedule:
-    - cron: "0 8 * * *"
+    - cron: "0 12 * * *"
 
 jobs:
   build:
     runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v4
-      - uses: sobolevn/misspell-fixer-action@e5368f1b21585248afad4d32df9bc100451dbbff
+      - name: Run codespell
+        continue-on-error: true
+        run: |
+          sudo apt-get install codespell -y
+          codespell -w --skip="*.pulsar.go,*.pb.go,*.pb.gw.go,*.cosmos_orm.go,*.json,*.git,*.js,crypto/keys,fuzz,*.h" --ignore-words=".github/.codespellignore"
       - uses: peter-evans/create-pull-request@v5
         with:
           token: ${{ secrets.PRBOT_PAT }}
-          commit-message: "chore: fixes by misspell-fixer"
-          title: "chore: typos fix by misspell-fixer"
+          commit-message: "chore: fixes by cosmos-sdk bot"
+          title: "chore: typos fixes by cosmos-sdk bot"
           branch: "bot/fix-typos"
           delete-branch: true
           body: |
             This PR fixes typos in the codebase.
-            Please, review it and merge if everything is fine.
-            If there is proto changes, please, run `make proto-gen` and commit changes.
+            Please review it, and merge if everything is fine.
+            If there are proto changes, run `make proto-gen` and commit the changes.