Bump prefix-dev/setup-pixi from 0.8.3 to 0.8.4 (#1940)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci_macos.yml

@@ -34,7 +34,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup pixi
-        uses: prefix-dev/[email protected].3
+        uses: prefix-dev/[email protected].4
         with:
           cache: true
 

.github/workflows/ci_ubuntu.yml

@@ -84,7 +84,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup pixi
-        uses: prefix-dev/[email protected].3
+        uses: prefix-dev/[email protected].4
         with:
           cache: true
 

.github/workflows/ci_windows.yml

@@ -33,7 +33,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup pixi
-        uses: prefix-dev/[email protected].3
+        uses: prefix-dev/[email protected].4
         with:
           cache: true
 

.github/workflows/update_lockfiles.yml

@@ -20,7 +20,7 @@ jobs:
         with:
           ref: ${{ matrix.base }}
       - name: Set up pixi
-        uses: prefix-dev/[email protected].3
+        uses: prefix-dev/[email protected].4
         with:
           run-install: false
       - name: Update lockfiles