remove install and caching homebrew

.github/workflows/test-convene-web.yml

@@ -47,9 +47,6 @@ jobs:
       # Temporary mitigation for https://github.com/actions/runner-images/issues/6283
       # Perhaps we should consider not using brew in CI (though it sure is nice!)
 
-      - name: Set up Homebrew environment
-        uses: Homebrew/actions/setup-homebrew@master
-
       - name: Setup Ruby and install gems
         uses: ruby/setup-ruby@v1
         with:
@@ -83,13 +80,7 @@ jobs:
       - name: Get brew cache path
         id: brew-cache-path
         run: echo "::set-output name=path::$(brew --cache)"
-
-      - name: Configure Homebrew cache
-        uses: actions/cache@v2
-        with:
-          path: ${{ steps.brew-cache-path.outputs.path }}
-          key: ${{ runner.os }}-brew-${{ hashFiles('bin/setup') }}
-          restore-keys: ${{ runner.os }}-brew-
+        run: echo "::set-output name=path::$(brew --cache)"
 
       - name: Setup test environment
         run: |
@@ -147,9 +138,6 @@ jobs:
       # Temporary mitigation for https://github.com/actions/runner-images/issues/6283
       # Perhaps we should consider not using brew in CI (though it sure is nice!)
 
-      - name: Set up Homebrew environment
-        uses: Homebrew/actions/setup-homebrew@master
-
       - name: Setup Ruby and install gems
         uses: ruby/setup-ruby@v1
         with:
@@ -184,13 +172,6 @@ jobs:
         id: brew-cache-path
         run: echo "::set-output name=path::$(brew --cache)"
 
-      - name: Configure Homebrew cache
-        uses: actions/cache@v2
-        with:
-          path: ${{ steps.brew-cache-path.outputs.path }}
-          key: ${{ runner.os }}-brew-${{ hashFiles('bin/setup') }}
-          restore-keys: ${{ runner.os }}-brew-
-
       - name: Setup test environment
         run: |
           sudo chown -R $USER /usr/local/lib/node_modules
@@ -259,9 +240,6 @@ jobs:
       # Temporary mitigation for https://github.com/actions/runner-images/issues/6283
       # Perhaps we should consider not using brew in CI (though it sure is nice!)
 
-      - name: Set up Homebrew environment
-        uses: Homebrew/actions/setup-homebrew@master
-
       - name: Install Firefox
         uses: browser-actions/setup-firefox@latest
 
@@ -299,13 +277,6 @@ jobs:
         id: brew-cache-path
         run: echo "::set-output name=path::$(brew --cache)"
 
-      - name: Configure Homebrew cache
-        uses: actions/cache@v2
-        with:
-          path: ${{ steps.brew-cache-path.outputs.path }}
-          key: ${{ runner.os }}-brew-${{ hashFiles('bin/setup') }}
-          restore-keys: ${{ runner.os }}-brew-
-
       - name: Setup test environment
         run: |
           sudo chown -R $USER /usr/local/lib/node_modules