build: remove workaround for ESBuild bug

package.json

@@ -53,7 +53,6 @@
     "babel-jest": "^26.6.3",
     "commitizen": "^4.2.4",
     "coveralls": "^3.1.0",
-    "cross-env": "^7.0.3",
     "cz-conventional-changelog": "^3.2.0",
     "esbuild-register": "^2.6.0",
     "eslint": "^7.28.0",
@@ -108,8 +107,7 @@
     "docs:generate": "yarn ts packages/maintenance/src/generateTypedDocs.ts",
     "test:perf": "yarn ts test/valuedb-perf.ts",
     "test:firmware": "yarn ts test/firmware-extraction.ts",
-    "//": "remove cross-env when https://github.com/evanw/esbuild/issues/1406 is fixed",
-    "ts": "cross-env ESBUILD_WORKER_THREADS=0 yarn node -r esbuild-register"
+    "ts": "node -r esbuild-register"
   },
   "readme": "README.md",
   "config": {

yarn.lock

@@ -2886,7 +2886,6 @@ __metadata:
     babel-jest: ^26.6.3
     commitizen: ^4.2.4
     coveralls: ^3.1.0
-    cross-env: ^7.0.3
     cz-conventional-changelog: ^3.2.0
     esbuild-register: ^2.6.0
     eslint: ^7.28.0
@@ -4227,18 +4226,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"cross-env@npm:^7.0.3":
-  version: 7.0.3
-  resolution: "cross-env@npm:7.0.3"
-  dependencies:
-    cross-spawn: ^7.0.1
-  bin:
-    cross-env: src/bin/cross-env.js
-    cross-env-shell: src/bin/cross-env-shell.js
-  checksum: 26f2f3ea2ab32617f57effb70d329c2070d2f5630adc800985d8b30b56e8bf7f5f439dd3a0358b79cee6f930afc23cf8e23515f17ccfb30092c6b62c6b630a79
-  languageName: node
-  linkType: hard
-
 "cross-spawn@npm:^6.0.0":
   version: 6.0.5
   resolution: "cross-spawn@npm:6.0.5"
@@ -4252,7 +4239,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"cross-spawn@npm:^7.0.0, cross-spawn@npm:^7.0.1, cross-spawn@npm:^7.0.2, cross-spawn@npm:^7.0.3":
+"cross-spawn@npm:^7.0.0, cross-spawn@npm:^7.0.2, cross-spawn@npm:^7.0.3":
   version: 7.0.3
   resolution: "cross-spawn@npm:7.0.3"
   dependencies: