fix: replace Azure/setup-azd action with direct curl installation

The Azure/setup-azd@v1.0.0 action was failing due to CDN connectivity issues.
Replaced with direct installation using curl from aka.ms/install-azd.sh which
is more reliable and doesn't depend on azdrelease.azureedge.net CDN.

Changes:
- Install azd using official installation script
- Add azd bin directory to PATH
- Apply to all 5 workflow files

Author: jkordick

.github/workflows/azure-dev.yml

@@ -33,7 +33,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install azd
-        uses: Azure/setup-azd@v1.0.0
+        run: |
+          curl -fsSL https://aka.ms/install-azd.sh | bash
+          echo "$HOME/.azd/bin" >> $GITHUB_PATH
 
       - name: Azure Login
         uses: azure/login@v2

.github/workflows/infrastructure.yml

@@ -37,7 +37,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install azd
-        uses: Azure/setup-azd@v1.0.0
+        run: |
+          curl -fsSL https://aka.ms/install-azd.sh | bash
+          echo "$HOME/.azd/bin" >> $GITHUB_PATH
 
       - name: Azure Login
         uses: azure/login@v2

.github/workflows/java-app.yml

@@ -54,7 +54,9 @@ jobs:
           echo "Maven build and tests passed successfully" >> $GITHUB_STEP_SUMMARY
       
       - name: Install azd
-        uses: Azure/setup-azd@v1.0.0
+        run: |
+          curl -fsSL https://aka.ms/install-azd.sh | bash
+          echo "$HOME/.azd/bin" >> $GITHUB_PATH
 
       - name: Azure Login
         uses: azure/login@v2

.github/workflows/js-app.yml

@@ -55,7 +55,9 @@ jobs:
           echo "Tests passed successfully" >> $GITHUB_STEP_SUMMARY
 
       - name: Install azd
-        uses: Azure/setup-azd@v1.0.0
+        run: |
+          curl -fsSL https://aka.ms/install-azd.sh | bash
+          echo "$HOME/.azd/bin" >> $GITHUB_PATH
 
       - name: Azure Login
         uses: azure/login@v2

.github/workflows/python-app.yml

@@ -54,7 +54,9 @@ jobs:
           echo "Tests passed successfully" >> $GITHUB_STEP_SUMMARY
 
       - name: Install azd
-        uses: Azure/setup-azd@v1.0.0
+        run: |
+          curl -fsSL https://aka.ms/install-azd.sh | bash
+          echo "$HOME/.azd/bin" >> $GITHUB_PATH
 
       - name: Azure Login
         uses: azure/login@v2