Fix constraints validation

yarn.config.cjs

@@ -253,9 +253,13 @@ gen_enforced_dependency(WorkspaceCwd, DependencyIdent, null, 'dependencies') :-
 function enforceBabelHelperBabelDeps({ Yarn }) {
   for (const workspace of Yarn.workspaces()) {
     if (workspace.ident?.startsWith("@babel/helper-")) {
-      workspace.unset("dependencies['@babel/traverse']");
-
-      if (workspace.pkg.peerDependencies.has("@babel/core")) {
+      if (
+        workspace.pkg.peerDependencies.has("@babel/core") &&
+        // In some cases, we remove peerDependencies for Babel 7
+        workspace.manifest.conditions?.BABEL_8_BREAKING?.[1]
+          ?.peerDependencies !== null
+      ) {
+        workspace.unset("dependencies['@babel/traverse']");
         workspace.unset("dependencies['@babel/template']");
         workspace.unset("dependencies['@babel/types']");
       }

yarn.lock

@@ -571,6 +571,8 @@ __metadata:
     "@babel/helper-annotate-as-pure": "workspace:^"
     "@babel/traverse": "workspace:^"
     "@babel/types": "workspace:^"
+  peerDependencies:
+    "@babel/core": ^7.0.0
   languageName: unknown
   linkType: soft
 
@@ -726,6 +728,8 @@ __metadata:
     "@jridgewell/gen-mapping": "npm:^0.3.5"
     "@types/semver": "npm:^7.3.4"
     semver: "condition:BABEL_8_BREAKING ? ^7.3.4 : ^6.3.1"
+  peerDependencies:
+    "@babel/core": ^7.0.0
   languageName: unknown
   linkType: soft
 
@@ -851,7 +855,6 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@babel/helper-module-imports@workspace:packages/babel-helper-module-imports"
   dependencies:
-    "@babel/core": "workspace:^"
     "@babel/traverse": "workspace:^"
     "@babel/types": "workspace:^"
   languageName: unknown
@@ -897,7 +900,6 @@ __metadata:
     "@babel/helper-simple-access": "workspace:^"
     "@babel/helper-split-export-declaration": "workspace:^"
     "@babel/helper-validator-identifier": "workspace:^"
-    "@babel/traverse": "workspace:^"
   peerDependencies:
     "@babel/core": ^7.0.0
   languageName: unknown
@@ -949,6 +951,8 @@ __metadata:
   resolution: "@babel/helper-plugin-utils@workspace:packages/babel-helper-plugin-utils"
   dependencies:
     "@babel/core": "workspace:^"
+  peerDependencies:
+    "@babel/core": ^7.0.0
   languageName: unknown
   linkType: soft