build(deps): bump cachix/install-nix-action from 31.0.0 to 31.1.0

Bumps [cachix/install-nix-action](https://github.com/cachix/install-nix-action) from 31.0.0 to 31.1.0.
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](cachix/install-nix-action@02a151a...d1ca217)

---
updated-dependencies:
- dependency-name: cachix/install-nix-action
  dependency-version: 31.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -155,7 +155,7 @@ jobs:
           echo -e "\n[+] Git log after rebase (with $CONTEXT commits context):"
           git log --oneline -n$(( COMMITS + CONTEXT ))
       - name: Install nix
-        uses: cachix/install-nix-action@02a151ada4993995686f9ed4f1be7cfbb229e56f # v31
+        uses: cachix/install-nix-action@d1ca217b388ee87b2507a9a93bf01368bde7cec2 # v31
       - name: Prepare remote builds
         run: |
           sudo sh -c "echo '${{ vars.BUILDER_SSH_KNOWN_HOST }}' >>/etc/ssh/ssh_known_hosts"

.github/workflows/check.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Install nix
-        uses: cachix/install-nix-action@02a151ada4993995686f9ed4f1be7cfbb229e56f # v31
+        uses: cachix/install-nix-action@d1ca217b388ee87b2507a9a93bf01368bde7cec2 # v31
       - name: Check .nix formatting
         run: nix fmt -- --fail-on-change
       - name: Check reuse lint

.github/workflows/doc.yml

@@ -25,7 +25,7 @@ jobs:
           egress-policy: audit
 
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: cachix/install-nix-action@02a151ada4993995686f9ed4f1be7cfbb229e56f # v31
+      - uses: cachix/install-nix-action@d1ca217b388ee87b2507a9a93bf01368bde7cec2 # v31
       - name: build
         run: nix build .#doc
       - name: deploy

.github/workflows/eval.yml

@@ -45,7 +45,7 @@ jobs:
           ref: ${{ github.event.pull_request.merge.sha || github.ref }}
           fetch-depth: 0
       - name: Install nix
-        uses: cachix/install-nix-action@02a151ada4993995686f9ed4f1be7cfbb229e56f # v31
+        uses: cachix/install-nix-action@d1ca217b388ee87b2507a9a93bf01368bde7cec2 # v31
       - name: Evaluate (jobid=${{ matrix.jobid }})
         run: |
           echo "strategy.job-total: ${{ strategy.job-total }}"