ci: Bump cachix/install-nix-action to 31.5.2

Author: Techassi

.github/workflows/generate_prs.yml

@@ -51,7 +51,7 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
-      - uses: cachix/install-nix-action@f0fe604f8a612776892427721526b4c7cfb23aba # v31.4.1
+      - uses: cachix/install-nix-action@fc6e360bedc9ee72d75e701397f0bb30dce77568 # v31.5.2
       - name: Install Ansible
         env:
           DEBIAN_FRONTEND: noninteractive

template/.github/workflows/build.yml.j2

@@ -340,7 +340,7 @@ jobs:
         with:
           persist-credentials: false
           submodules: recursive
-      - uses: cachix/install-nix-action@f0fe604f8a612776892427721526b4c7cfb23aba # v31.4.1
+      - uses: cachix/install-nix-action@fc6e360bedc9ee72d75e701397f0bb30dce77568 # v31.5.2
       - uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b
         with:
           toolchain: ${{ env.RUST_TOOLCHAIN_VERSION }}