build(deps-dev): bump react and @types/react in /workspaces/confluence

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) and [@types/react](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react). These dependencies needed to be updated together.

Updates `react` from 18.3.1 to 19.0.0
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v19.0.0/packages/react)

Updates `@types/react` from 18.3.3 to 19.0.8
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react)

---
updated-dependencies:
- dependency-name: react
  dependency-type: direct:development
  update-type: version-update:semver-major
- dependency-name: "@types/react"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

workspaces/confluence/.changeset/dependabot-0422950.md

@@ -0,0 +1,6 @@
+---
+'@philips-software/backstage-plugin-search-confluence-frontend': patch
+---
+
+Updated dependency `@types/react` to `^19`.
+Updated dependency `react` to `^19.0.0`.

workspaces/confluence/plugins/search-confluence-frontend/package.json

@@ -54,12 +54,12 @@
     "@backstage/test-utils": "backstage:^",
     "@testing-library/jest-dom": "^6.4.2",
     "@testing-library/react": "^15.0.2",
-    "@types/react": "^18",
+    "@types/react": "^19",
     "@types/react-dom": "^18",
     "jest": "^29.7.0",
     "jest-canvas-mock": "^2.5.2",
     "msw": "^1.2.1",
-    "react": "^18.3.1",
+    "react": "^19.0.0",
     "react-dom": "^18.3.1",
     "react-router-dom": "^6.23.1"
   },

workspaces/confluence/yarn.lock

@@ -6931,12 +6931,12 @@ __metadata:
     "@material-ui/lab": "npm:^4.0.0-alpha.61"
     "@testing-library/jest-dom": "npm:^6.4.2"
     "@testing-library/react": "npm:^15.0.2"
-    "@types/react": "npm:^18"
+    "@types/react": "npm:^19"
     "@types/react-dom": "npm:^18"
     jest: "npm:^29.7.0"
     jest-canvas-mock: "npm:^2.5.2"
     msw: "npm:^1.2.1"
-    react: "npm:^18.3.1"
+    react: "npm:^19.0.0"
     react-dom: "npm:^18.3.1"
     react-router-dom: "npm:^6.23.1"
     react-use: "npm:^17.2.4"
@@ -22896,12 +22896,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react@npm:^18.3.1":
-  version: 18.3.1
-  resolution: "react@npm:18.3.1"
-  dependencies:
-    loose-envify: "npm:^1.1.0"
-  checksum: 10/261137d3f3993eaa2368a83110466fc0e558bc2c7f7ae7ca52d94f03aac945f45146bd85e5f481044db1758a1dbb57879e2fcdd33924e2dde1bdc550ce73f7bf
+"react@npm:^19.0.0":
+  version: 19.0.0
+  resolution: "react@npm:19.0.0"
+  checksum: 10/2490969c503f644703c88990d20e4011fa6119ddeca451e9de48f6d7ab058d670d2852a5fcd3aa3cd90a923ab2815d532637bd4a814add402ae5c0d4f129ee71
   languageName: node
   linkType: hard