ci: hardcode cachix instance name

Author: drainpixie

.github/workflows/cd-publish.yml

@@ -29,7 +29,7 @@ jobs:
       - name: "[INIT] Setup Cachix"
         uses: cachix/cachix-action@v15
         with:
-          name: ${{ secrets.CACHIX_CACHE_NAME }}
+          name: proselint
           authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
 
       - name: "[BUILD] Build wheel"

.github/workflows/ci-lint-test.yml

@@ -20,7 +20,7 @@ jobs:
       - name: "[INIT] Setup Cachix"
         uses: cachix/cachix-action@v15
         with:
-          name: ${{ secrets.CACHIX_CACHE_NAME }}
+          name: proselint
           authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
 
       - name: "[EXEC] Lint"
@@ -52,7 +52,7 @@ jobs:
         uses: cachix/cachix-action@v15
         if: runner.os != 'Windows'
         with:
-          name: ${{ secrets.CACHIX_CACHE_NAME }}
+          name: proselint
           authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
 
       - name: "[INIT] Install uv (Windows)"