workflows: upgrade tj-actions/changed-files to v46

It was recently compromised and even though changes to tags were reverted it's
still worth upgrading (GH also warns about <=45.0.7).

I've checked this repository, we've not leaked anything since March 14 (the day
of the attack).

See tj-actions/changed-files#2463 also.

Signed-off-by: Roman Khimov <roman@nspcc.ru>

Author: roman-khimov

.github/workflows/changelog.yml

@@ -17,7 +17,7 @@ jobs:
 
       - name: Get changed CHANGELOG
         id: changelog-diff
-        uses: tj-actions/changed-files@v42
+        uses: tj-actions/changed-files@v46
         with:
           files: CHANGELOG.md
 

.github/workflows/config-update.yml

@@ -17,15 +17,15 @@ jobs:
 
       - name: Get changed config-related files
         id: config-diff
-        uses: tj-actions/changed-files@v42
+        uses: tj-actions/changed-files@v46
         with:
           files: |
             config/**
             cmd/neofs-node/config/**
 
       - name: Get changed doc files
         id: docs-diff
-        uses: tj-actions/changed-files@v42
+        uses: tj-actions/changed-files@v46
         with:
           files: docs/**