Disable local auth in EventGrid

[tamirkamara]

Resolves #4253

What is being addressed

Local authentication is on by default in EventGrid.

How is this addressed

• Disable local auth in both resources
• Updates to workflows to account for the updated GitHub agents.

[github-actions]

Unit Test Results

0 tests   0 ✅  0s ⏱️
0 suites  0 💤
0 files    0 ❌

Results for commit 9c0ee44.

♻️ This comment has been updated with latest results.

[tamirkamara]

/test-extended

[github-actions]

🤖 pr-bot 🤖

🏃 Running extended tests: https://github.com/microsoft/AzureTRE/actions/runs/12634766851 (with refid 111da09c)

(in response to this comment from @tamirkamara)

[github-actions]

🤖 pr-bot 🤖

🏃 Running extended tests: https://github.com/microsoft/AzureTRE/actions/runs/12634766851 (with refid 111da09c)

(in response to this comment from @tamirkamara)

[tamirkamara]

/test-extended

[github-actions]

🤖 pr-bot 🤖

🏃 Running extended tests: https://github.com/microsoft/AzureTRE/actions/runs/12637465082 (with refid 111da09c)

(in response to this comment from @tamirkamara)

[tamirkamara]

/test-extended

[github-actions]

🤖 pr-bot 🤖

🏃 Running extended tests: https://github.com/microsoft/AzureTRE/actions/runs/12645839372 (with refid 111da09c)

(in response to this comment from @tamirkamara)

[github-actions]

🤖 pr-bot 🤖

🏃 Running extended tests: https://github.com/microsoft/AzureTRE/actions/runs/12645839372 (with refid 111da09c)

(in response to this comment from @tamirkamara)