Add automatic issue labeler to organize opened issues

This PR is based on Github Regex labeler https://github.com/marketplace/actions/regex-issue-labeler?version=v3.1 and use a configuration file to set label to issues.

I want to organize issues based on which part of dora they affect.

.github/labeler.yml

@@ -0,0 +1,43 @@
+# Add/remove 'critical' label if issue contains the words 'urgent' or 'critical'
+critical:
+    - '(critical|urgent)'
+
+cli:
+    - 'cli'
+
+daemon:
+    - 'daemon'
+
+coordinator:
+    - 'coordinator'
+
+runtime:
+    - 'runtime'
+
+python:
+    - 'python'
+
+c:
+    - 'c'
+
+c++:
+    - '(c++/cxx)'
+
+rust:
+    - 'rust'
+
+windows:
+    - 'windows'
+
+macos:
+    - 'macos' 
+
+linux:
+    - '(linux|ubuntu)' 
+
+bug:
+    - 'bug' 
+
+documentation:
+    - '(doc|documentation)'
+

.github/workflows/labeler.yml

@@ -0,0 +1,15 @@
+name: "Issue Labeler"
+on:
+  issues:
+    types: [opened, edited]
+
+jobs:
+  triage:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: github/[email protected] #May not be the latest version
+      with:
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"
+        configuration-path: .github/labeler.yml
+        enable-versioned-regex: 0
+        include-title: 1