Add slack notification action (#1)

* Add slack notification action

* [check-spelling] Update metadata

Update for https://github.com/GarnerCorp/build-actions/actions/runs/8191067924/attempts/1
Accepted in #1 (comment)

Signed-off-by: check-spelling-bot <check-spelling-bot@users.noreply.github.com>
on-behalf-of: @check-spelling <check-spelling-bot@check-spelling.dev>

---------

Signed-off-by: check-spelling-bot <check-spelling-bot@users.noreply.github.com>

notify-slack/action.yml

@@ -0,0 +1,41 @@
+name: 'Slack Notification'
+description: 'Send notifications to Slack'
+inputs:
+  slack-webhook:
+    description: 'Slack webhook URL'
+    required: true
+  slack-username:
+    description: 'Username to display in the message'
+    required: true
+  slack-channel:
+    description: 'Slack channel to post the message'
+    required: true
+  title:
+    description: 'Message title'
+    required: true
+  text:
+    description: 'Message text'
+    required: true
+  color:
+    description: 'Color of the message'
+    required: false
+    default: 'good'
+
+runs:
+  using: composite
+  steps:
+    - name: Notify Slack Channel
+      shell: bash
+      run: |
+        curl "${{ inputs.slack-webhook }}" -X POST -H "Content-Type: application/json" \
+          --data '{
+            "username": "${{ inputs.slack-username }}",
+            "channel": "${{ inputs.slack-channel }}", 
+            "attachments": [
+            {
+                "title": "${{ inputs.title }}",
+                "text": "${{ inputs.text }}",
+                "color": "${{ inputs.color }}"
+              }
+            ]
+          }'