build(deps-dev): bump eslint-plugin-yml in /backend (#589)

Bumps [eslint-plugin-yml](https://github.com/ota-meshi/eslint-plugin-yml) from 1.19.0 to 1.19.1.
- [Release notes](https://github.com/ota-meshi/eslint-plugin-yml/releases)
- [Changelog](https://github.com/ota-meshi/eslint-plugin-yml/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ota-meshi/eslint-plugin-yml/compare/v1.19.0...v1.19.1)

---
updated-dependencies:
- dependency-name: eslint-plugin-yml
  dependency-version: 1.19.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

backend/package-lock.json

@@ -31,7 +31,7 @@
         "eslint-plugin-prettier": "^5.5.4",
         "eslint-plugin-promise": "^6.1.1",
         "eslint-plugin-security": "^3.0.1",
-        "eslint-plugin-yml": "^1.19.0",
+        "eslint-plugin-yml": "^1.19.1",
         "jest": "^30.2.0",
         "ts-jest": "^29.4.6",
         "tsx": "^4.21.0",
@@ -5609,9 +5609,9 @@
       }
     },
     "node_modules/eslint-plugin-yml": {
-      "version": "1.19.0",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-yml/-/eslint-plugin-yml-1.19.0.tgz",
-      "integrity": "sha512-S+4GbcCWksFKAvFJtf0vpdiCkZZvDJCV4Zsi9ahmYkYOYcf+LRqqzvzkb/ST7vTYV6sFwXOvawzYyL/jFT2nQA==",
+      "version": "1.19.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-yml/-/eslint-plugin-yml-1.19.1.tgz",
+      "integrity": "sha512-bYkOxyEiXh9WxUhVYPELdSHxGG5pOjCSeJOVkfdIyj6tuiHDxrES2WAW1dBxn3iaZQey57XflwLtCYRcNPOiOg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {

backend/package.json

@@ -33,7 +33,7 @@
     "eslint-plugin-prettier": "^5.5.4",
     "eslint-plugin-promise": "^6.1.1",
     "eslint-plugin-security": "^3.0.1",
-    "eslint-plugin-yml": "^1.19.0",
+    "eslint-plugin-yml": "^1.19.1",
     "jest": "^30.2.0",
     "ts-jest": "^29.4.6",
     "tsx": "^4.21.0",