ci: replace extractions/setup-just with brew install

setup-just uses Node.js 20 which is deprecated. A simple brew install
has no third-party action dependency.

Author: dylanmtaylor

.github/workflows/generate-release.yml

@@ -34,8 +34,8 @@ jobs:
         with:
           fetch-depth: 500
 
-      - name: Setup Just
-        uses: extractions/setup-just@f8a3cce218d9f83db3a2ecd90e41ac3de6cdfd9b # v3
+      - name: Install Just
+        run: brew install just
 
       - name: Check Just Syntax
         shell: bash

.github/workflows/reusable-build.yml

@@ -55,8 +55,8 @@ jobs:
       - name: Maximize build space
         uses: ublue-os/remove-unwanted-software@695eb75bc387dbcd9685a8e72d23439d8686cba6 # v10
 
-      - name: Setup Just
-        uses: extractions/setup-just@f8a3cce218d9f83db3a2ecd90e41ac3de6cdfd9b # v3
+      - name: Install Just
+        run: brew install just
 
       - name: Check Just Syntax
         shell: bash