minor #116 Remove Babel (which was not really necessary), replace it by acorn if needed, close #105 (Kocal)

This PR was merged into the main branch.

Discussion
----------

Remove Babel (which was not really necessary), replace it by acorn if needed, close #105

Babel configuration files `.babel.rc` and `babel.config.js` were not used (anymore), ``@babel`/parser` can be replaced by `acorn` that we already use, so we can remove Babel and remove ~120 devDependencies:
- before:
```
Progress: resolved 1, reused 0, downloaded 0, added 0
Progress: resolved 11[8](https://github.com/symfony/stimulus-bridge/actions/runs/13026638540/job/36336794852?pr=115#step:6:9), reused 1, downloaded 99, added 0
Progress: resolved 284, reused 1, downloaded 243, added 0
Packages: +360
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Progress: resolved 423, reused 1, downloaded 364, added 360, done
.../[email protected]/node_modules/esbuild postinstall$ node install.js
.../node_modules/`@biomejs`/biome postinstall$ node scripts/postinstall.js
.../[email protected]/node_modules/esbuild postinstall: Done
.../node_modules/`@biomejs`/biome postinstall: Done

dependencies:
+ `@hotwired`/stimulus-webpack-helpers 1.0.1
+ `@types`/webpack-env 1.18.8
+ loader-utils 3.3.1
+ schema-utils 4.3.0

devDependencies:
+ `@babel`/core 7.26.7
+ `@babel`/parser 7.26.7
+ `@babel`/preset-env 7.26.7
+ `@babel`/preset-typescript 7.26.0
+ `@babel`/types 7.26.7
+ `@biomejs`/biome 1.[9](https://github.com/symfony/stimulus-bridge/actions/runs/13026638540/job/36336794852?pr=115#step:6:10).4
+ `@hotwired`/stimulus 3.2.2
+ `@rollup`/plugin-typescript 12.1.2
+ `@symfony`/mock-module 1.0.0
+ `@testing`-library/jest-dom 6.6.3
+ acorn 8.14.0
+ jsdom 26.0.0
+ json5 2.2.3
+ rolldown 1.0.0-beta.3
+ tslib 2.8.1
+ typescript 4.9.5 (5.7.3 is available)
+ vitest 3.0.4
+ webpack 5.97.1
+ webpack-cli 5.1.4 (6.0.1 is available)

 WARN  Issues with peer dependencies found
.
└─┬ valibot 1.0.0-beta.[12](https://github.com/symfony/stimulus-bridge/actions/runs/13026638540/job/36336794852?pr=115#step:6:13)
  └── ✕ unmet peer typescript@>=5: found 4.9.5

Done in 3.9s
```
- after:
```
Progress: resolved 1, reused 0, downloaded 0, added 0
Progress: resolved 68, reused 1, downloaded 27, added 0
Progress: resolved 210, reused 1, downloaded 173, added 0
Packages: +241
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Progress: resolved 304, reused 1, downloaded 245, added 241, done
.../node_modules/`@biomejs`/biome postinstall$ node scripts/postinstall.js
.../[email protected]/node_modules/esbuild postinstall$ node install.js
.../node_modules/`@biomejs`/biome postinstall: Done
.../[email protected]/node_modules/esbuild postinstall: Done
dependencies:
+ `@hotwired`/stimulus-webpack-helpers 1.0.1
+ `@types`/webpack-env 1.18.8
+ loader-utils 3.3.1
+ schema-utils 4.3.0
devDependencies:
+ `@biomejs`/biome 1.[9](https://github.com/symfony/stimulus-bridge/actions/runs/13026994439/job/36337823223?pr=116#step:6:9).4
+ `@hotwired`/stimulus 3.2.2
+ `@rollup`/plugin-typescript 12.1.2
+ `@symfony`/mock-module 1.0.0
+ `@testing`-library/jest-dom 6.6.3
+ acorn 8.14.0
+ jsdom 26.0.0
+ json5 2.2.3
+ rolldown 1.0.0-beta.3
+ tslib 2.8.1
+ typescript 4.9.5 (5.7.3 is available)
+ vitest 3.0.4
+ webpack 5.97.1
+ webpack-cli 5.1.4 (6.0.1 is available)
 WARN  Issues with peer dependencies found
.
└─┬ valibot 1.0.0-beta.[12](https://github.com/symfony/stimulus-bridge/actions/runs/13026994439/job/36337823223?pr=116#step:6:12)
  └── ✕ unmet peer typescript@>=5: found 4.9.5
Done in 3.5s
```

Commits
-------

77e9506 Remove Babel (which was not really necessary), replace it by acorn if needed, close #105

Author: Kocal

.babelrc

@@ -23,6 +23,7 @@
 * Migrate from [Rollup](https://rollupjs.org/) to [Rolldown](https://rolldown.rs/) by @Kocal in https://github.com/symfony/stimulus-bridge/pull/99
 * Migrate from [Yarn](https://yarnpkg.com/) to [pnpm](https://pnpm.io/) by @Kocal in https://github.com/symfony/stimulus-bridge/pull/108
 * Migrate from [Jest](https://jestjs.io/) to [Vitest](https://vitest.dev/) by @Kocal in https://github.com/symfony/stimulus-bridge/pull/115
+* Migrate or remove [Babel](https://babeljs.io/) in favor of [Acorn](https://github.com/acornjs/acorn) by @Kocal in https://github.com/symfony/stimulus-bridge/pull/116
 
 ## 3.3.3
 

CHANGELOG.md

@@ -27,11 +27,6 @@
         "schema-utils": "^3.0.0 || ^4.0.0"
     },
     "devDependencies": {
-        "@babel/core": "^7.22.0",
-        "@babel/parser": "^7.26.7",
-        "@babel/preset-env": "^7.22.0",
-        "@babel/preset-typescript": "^7.22.0",
-        "@babel/types": "^7.26.7",
         "@biomejs/biome": "^1.9.4",
         "@hotwired/stimulus": "^3.0",
         "@rollup/plugin-typescript": "^12.1.2",