build(deps): bump cachix/install-nix-action from 24 to 26

Bumps [cachix/install-nix-action](https://github.com/cachix/install-nix-action) from 24 to 26.
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](https://github.com/cachix/install-nix-action/compare/v24...v26)

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

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

.github/workflows/nix.yml

@@ -16,7 +16,7 @@ jobs:
             /nix
             /zig
       - name: Setup Nix
-        uses: cachix/install-nix-action@v24
+        uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - uses: cachix/cachix-action@v14

.github/workflows/release-tip.yml

@@ -45,7 +45,7 @@ jobs:
           fetch-depth: 0
 
       # Install Nix and use that to run our tests so our environment matches exactly.
-      - uses: cachix/install-nix-action@v24
+      - uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - uses: cachix/cachix-action@v14

.github/workflows/test.yml

@@ -34,7 +34,7 @@ jobs:
             /zig
 
       # Install Nix and use that to run our tests so our environment matches exactly.
-      - uses: cachix/install-nix-action@v24
+      - uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - uses: cachix/cachix-action@v14
@@ -66,7 +66,7 @@ jobs:
             /zig
 
       # Install Nix and use that to run our tests so our environment matches exactly.
-      - uses: cachix/install-nix-action@v24
+      - uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - uses: cachix/cachix-action@v14
@@ -95,7 +95,7 @@ jobs:
             /zig
 
       # Install Nix and use that to run our tests so our environment matches exactly.
-      - uses: cachix/install-nix-action@v24
+      - uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - uses: cachix/cachix-action@v14
@@ -128,7 +128,7 @@ jobs:
             /zig
 
       # Install Nix and use that to run our tests so our environment matches exactly.
-      - uses: cachix/install-nix-action@v24
+      - uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - uses: cachix/cachix-action@v14
@@ -147,7 +147,7 @@ jobs:
         uses: actions/checkout@v4
 
       # Install Nix and use that to run our tests so our environment matches exactly.
-      - uses: cachix/install-nix-action@v24
+      - uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - uses: cachix/cachix-action@v14
@@ -257,7 +257,7 @@ jobs:
             /zig
 
       # Install Nix and use that to run our tests so our environment matches exactly.
-      - uses: cachix/install-nix-action@v24
+      - uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - uses: cachix/cachix-action@v14
@@ -291,7 +291,7 @@ jobs:
           path: |
             /nix
             /zig
-      - uses: cachix/install-nix-action@v24
+      - uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - uses: cachix/cachix-action@v14
@@ -317,7 +317,7 @@ jobs:
           path: |
             /nix
             /zig
-      - uses: cachix/install-nix-action@v24
+      - uses: cachix/install-nix-action@v26
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - uses: cachix/cachix-action@v14