chore(deps): update taiki-e/install-action action to v2.78.2

Author: renovate[bot]

.github/workflows/codecov.yml

@@ -18,7 +18,7 @@ jobs:
           components: llvm-tools-preview
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@51cd0b8c0499559d9a4d75c0f5c67bec3a894ec8 # v2.75.28
+        uses: taiki-e/install-action@3771e22aa892e03fd35585fae288baad1755695c # v2.78.2
         with:
           tool: cargo-llvm-cov