fix(angular): correct nx angular migration requirement for 19.2 (#30234)

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## Current Behavior
Angular migrations require @angular/[email protected], to update to 19.2.0

## Expected Behavior
Angular migrations require @angular/[email protected] to update to 19.2.0

## Related Issue(s)
<!-- Please link the issue being fixed so it gets closed when this is
merged. -->

Fixes #

---------

Co-authored-by: FrozenPandaz <[email protected]>

Author: AgentEnder

docs/generated/packages/angular/migrations/20.5.0-package-updates.json

@@ -2,7 +2,7 @@
   "name": "20.5.0-package-updates",
   "version": "20.5.0-beta.5",
   "x-prompt": "Do you want to update the Angular version to v19.2?",
-  "requires": { "@angular/core": ">=19.2.0 <20.0.0-next.0" },
+  "requires": { "@angular/core": ">=19.1.0 <19.2.0" },
   "packages": {
     "@angular-devkit/build-angular": {
       "version": "~19.2.0",

packages/angular/migrations.json

@@ -1547,7 +1547,7 @@
       "version": "20.5.0-beta.5",
       "x-prompt": "Do you want to update the Angular version to v19.2?",
       "requires": {
-        "@angular/core": ">=19.2.0 <20.0.0-next.0"
+        "@angular/core": ">=19.1.0 <19.2.0"
       },
       "packages": {
         "@angular-devkit/build-angular": {