chore(deps): update determinatesystems/nix-installer-action action to v18

Author: renovate[bot]

.github/actions/set_up_runner/action.yaml

@@ -7,7 +7,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: DeterminateSystems/nix-installer-action@e50d5f73bfe71c2dd0aa4218de8f4afa59f8f81d # v16
+    - uses: DeterminateSystems/nix-installer-action@c723f3a885e3f1d866d91f4f0c33dd44b1fc7c60 # v18
       with:
         github-token: ${{ inputs.github_token }}
     - uses: DeterminateSystems/magic-nix-cache-action@e1c1dae8e170ed20fd2e6aaf9979ca2d3905d636 # v12