fix: General dependency upgrades. Relaxed peer dep constraints to allow for React 19, and changed tests to run against React 19. We now declare @react-leaflet/core as a peer dep to support these changes.

Author: adamscybot

package.json

@@ -30,36 +30,37 @@
     "test:dev": "cypress open --component --browser chrome"
   },
   "devDependencies": {
-    "@react-leaflet/core": "^2.1.0",
-    "@types/leaflet": "^1.9.12",
-    "@types/react": "^18.3.4",
-    "@types/react-dom": "^18.3.0",
-    "@types/react-is": "^18.3.0",
-    "@vitejs/plugin-react-swc": "^3.7.0",
-    "cypress": "^13.13.3",
-    "eslint": "^9.9.0",
+    "@react-leaflet/core": "^3.0.0",
+    "@types/leaflet": "^1.9.15",
+    "@types/react": "^19.0.2",
+    "@types/react-dom": "^19.0.2",
+    "@types/react-is": "^19.0.0",
+    "@vitejs/plugin-react-swc": "^3.7.2",
+    "cypress": "^13.17.0",
+    "eslint": "^9.17.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.2.1",
     "leaflet": "^1.9.4",
-    "prettier": "^3.3.3",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
-    "react-leaflet": "^4.2.1",
-    "semantic-release": "^24.1.0",
-    "typescript": "^5.5.4",
-    "typescript-eslint": "^8.2.0",
-    "vite": "^5.4.2"
+    "prettier": "^3.4.2",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "react-leaflet": "^5.0.0",
+    "semantic-release": "^24.2.0",
+    "typescript": "^5.7.2",
+    "typescript-eslint": "^8.18.2",
+    "vite": "^5.4.11"
   },
   "peerDependencies": {
-    "leaflet": "^1.9.0",
-    "react": "^18.0.0",
-    "react-dom": "^18.0.0",
-    "react-leaflet": "^4.0.0"
+    "@react-leaflet/core": ">=2.0.0",
+    "leaflet": ">=1.9.0",
+    "react": ">=18.0.0",
+    "react-dom": ">=18.0.0",
+    "react-leaflet": ">=4.0.0"
   },
   "dependencies": {
     "react-is": "^18.3.1",
     "react-reverse-portal": "^2.1.2",
-    "type-fest": "^4.25.0"
+    "type-fest": "^4.30.2"
   },
   "release": {
     "branches": [