chore(deps): update cachix/install-nix-action action to v31.8.2 (#230)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/flow-pr.yml

@@ -25,7 +25,7 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
-      - uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31.8.1
+      - uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31.8.2
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
       - name: Try to update nix flake

.github/workflows/flow-release.yml

@@ -24,7 +24,7 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
-      - uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31.8.1
+      - uses: cachix/install-nix-action@456688f15bc354bef6d396e4a35f4f89d40bf2b7 # v31.8.2
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
       - name: Import GPG key