build(deps): update taiki-e/install-action action to v2.49.20

Author: renovate[bot]

.github/workflows/ci.yml

@@ -80,7 +80,7 @@ jobs:
           override: true
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@87b5304d4e82236718783683826c899da7e5470f # v2.49.19
+        uses: taiki-e/install-action@03351cfd91ee8253b66020be1ad81991e6ba3502 # v2.49.20
         with:
           tool: cargo-llvm-cov