Allow eslint to be updated by dependabot (Issue #1841, PR #2232)

# Description

closes #1841

# Self Check:

Strike through any lines that are not applicable (`~~line~~`) then check the box

- [x] Attached issue to pull request
- [x] Changelog entry
- [x] Code is clear and sufficiently documented
- [x] Sufficient test cases (reproduces the bug/tests the requested feature)
- [x] Correct, in line with design
- [ ] ~~End user documentation is included or an issue is created for end-user documentation (add ref to issue here: )~~

# Reviewer Checklist:

- [ ] Sufficient test cases (reproduces the bug/tests the requested feature)
- [ ] Code is clear and sufficiently documented
- [ ] Correct, in line with design

.github/dependabot.yml

@@ -9,7 +9,3 @@ updates:
     # Serialize all Dependabot PRs to prevent merge conflicts
     # on the package.json and yarn.lock files
     open-pull-requests-limit: 1
-    ignore:
-      - dependency-name: "eslint"
-        # For ESLint, ignore all updates for version 8
-        versions: ["8.x"]

changelogs/unreleased/1841-dependabot-allow-eslint.yml

@@ -0,0 +1,4 @@
+description: Allow eslint to be updated by dependabot
+issue-nr: 1841
+change-type: patch
+destination-branches: [master, iso4]