[Github] Bump old action versions (llvm#129833)

These two actions are particularly old, and should be updated to the
latest version. Doing this in a specific commit to easily roll back if
things break and to get as much testing done as possible within the jobs
triggered as a part of these changes.

Author: boomanaiden154

.github/workflows/docs.yml

@@ -65,7 +65,7 @@ jobs:
           fetch-depth: 1
       - name: Get subprojects that have doc changes
         id: docs-changed-subprojects
-        uses: tj-actions/changed-files@fea790cb660e33aef4bdf07304e28fedd77dfa13 # v39.2.4
+        uses: tj-actions/changed-files@dcc7a0cba800f454d79fff4b993e8c3555bcc0a8 # v45.0.7
         with:
           files_yaml: |
             llvm:

.github/workflows/issue-write.yml

@@ -39,7 +39,7 @@ jobs:
 
       - name: 'Comment on PR'
         if: steps.download-artifact.outputs.artifact-id != ''
-        uses: actions/github-script@ffc2c79a5b2490bd33e0a41c1de74b877714d736 # v3.2.0
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |