Update babel monorepo to v7.26.0 (#96333)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

packages/grafana-flamegraph/package.json

@@ -56,8 +56,8 @@
     "tslib": "2.7.0"
   },
   "devDependencies": {
-    "@babel/core": "7.25.9",
-    "@babel/preset-env": "7.25.9",
+    "@babel/core": "7.26.0",
+    "@babel/preset-env": "7.26.0",
     "@babel/preset-react": "7.25.9",
     "@grafana/tsconfig": "^2.0.0",
     "@rollup/plugin-node-resolve": "15.3.0",

packages/grafana-icons/package.json

@@ -34,7 +34,7 @@
     "build": "yarn generate && rollup -c rollup.config.ts --configPlugin esbuild"
   },
   "devDependencies": {
-    "@babel/core": "7.25.9",
+    "@babel/core": "7.26.0",
     "@grafana/tsconfig": "^2.0.0",
     "@rollup/plugin-node-resolve": "^15.3.0",
     "@rollup/plugin-typescript": "^12.1.0",

packages/grafana-ui/package.json

@@ -114,7 +114,7 @@
     "uuid": "9.0.1"
   },
   "devDependencies": {
-    "@babel/core": "7.25.9",
+    "@babel/core": "7.26.0",
     "@faker-js/faker": "^9.0.0",
     "@grafana/tsconfig": "^2.0.0",
     "@rollup/plugin-node-resolve": "15.3.0",