[CI] Bump tj-actions/changed-files to v46 (#17503)

due to found CVE-2025-30066.

Ref. GHSA-mrrh-fwg8-r2c3

Author: lukaszstolarczuk

.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@v45
+        uses: tj-actions/changed-files@v46
         with:
           files_yaml: |
             llvm:

.github/workflows/pr-code-format.yml

@@ -34,7 +34,7 @@ jobs:
 
       - name: Get changed files
         id: changed-files
-        uses: tj-actions/changed-files@v45
+        uses: tj-actions/changed-files@v46
         with:
           separator: ","
           skip_initial_fetch: true