Add hex color string formatting for all label colors (#600)

.github/labels.yml

@@ -6,67 +6,67 @@
 # the GitHub Action https://github.com/marketplace/actions/github-labeler.
 - name: breaking
   description: Breaking Changes
-  color: bfd4f2
+  color: "#bfd4f2"
 - name: bug
   description: Something isn't working
-  color: d73a4a
+  color: "#d73a4a"
 - name: build
   description: Build System and Dependencies
-  color: bfdadc
+  color: "#bfdadc"
 - name: ci
   description: Continuous Integration
-  color: 4a97d6
+  color: "#4a97d6"
 - name: dependencies
   description: Pull requests that update a dependency file
-  color: 0366d6
+  color: "#0366d6"
 - name: documentation
   description: Improvements or additions to documentation
-  color: 0075ca
+  color: "#0075ca"
 - name: duplicate
   description: This issue or pull request already exists
-  color: cfd3d7
+  color: "#cfd3d7"
 - name: enhancement
   description: New feature or request
-  color: a2eeef
+  color: "#a2eeef"
 - name: github_actions
   description: Pull requests that update Github_actions code
-  color: "000000"
+  color: "#000000"
 - name: good first issue
   description: Good for newcomers
-  color: 7057ff
+  color: "#7057ff"
 - name: help wanted
   description: Extra attention is needed
-  color: 008672
+  color: "#008672"
 - name: invalid
   description: This doesn't seem right
-  color: e4e669
+  color: "#e4e669"
 - name: performance
   description: Performance
-  color: "016175"
+  color: "#016175"
 - name: python
   description: Pull requests that update Python code
-  color: 2b67c6
+  color: "#2b67c6"
 - name: question
   description: Further information is requested
-  color: d876e3
+  color: "#d876e3"
 - name: refactoring
   description: Refactoring
-  color: ef67c4
+  color: "#ef67c4"
 - name: removal
   description: Removals and Deprecations
-  color: 9ae7ea
+  color: "#9ae7ea"
 - name: style
   description: Style
-  color: c120e5
+  color: "#c120e5"
 - name: testing
   description: Testing
-  color: b1fc6f
+  color: "#b1fc6f"
 - name: skip-changelog
   description: Skip pull request from release notes
-  color: 964B00
+  color: "#964B00"
 - name: skip-stale
   description: Skip issue or pull request to be marked as stale
-  color: 964B50
+  color: "#964B50"
 - name: wontfix
   description: This will not be worked on
-  color: ffffff
+  color: "#ffffff"