build: Migration to Angular/NX v15

Executed by Nx with the command 'nx migrate 15.9.3', the latest non-major version of v15

-fix: Fix Typescript Issue following migration from 4.7.4 to 4.9.5
-fix: Fix jest-marble test error by migrating from 2.5.1 to 3.0.6
-fix: Fix RxJS error following it's migration from 6.6.0 to 7.8.1

libs/ngrx-traits/common/package.json

@@ -6,14 +6,14 @@
     "postinstall": "ngcc"
   },
   "peerDependencies": {
-    "@angular/core": "^14.0.0",
-    "@ngrx/effects": "^14.0.0",
-    "@ngrx/entity": "^14.0.0",
-    "@ngrx/store": "^14.0.0",
-    "@ngrx-traits/core": "^14.0.0"
+    "@angular/core": "^15.2.10",
+    "@ngrx/effects": "^15.3.0",
+    "@ngrx/entity": "^15.3.0",
+    "@ngrx/store": "^15.3.0",
+    "@ngrx-traits/core": "^15.0.0"
   },
   "optionalDependencies": {
-    "@angular/router": "^14.0.0"
+    "@angular/router": "^15.2.10"
   },
   "repository": {
     "type": "git",

libs/ngrx-traits/core/package.json

@@ -8,11 +8,11 @@
     "postinstall": "ngcc"
   },
   "peerDependencies": {
-    "@angular/core": "^14.0.0",
-    "@ngrx/effects": "^14.0.0",
-    "@ngrx/entity": "^14.0.0",
-    "@ngrx/store": "^14.0.0",
-    "rxjs": "^6.5.3 || ^7.5.0"
+    "@angular/core": "^15.2.10",
+    "@ngrx/effects": "^15.3.0",
+    "@ngrx/entity": "^15.3.0",
+    "@ngrx/store": "^15.3.0",
+    "rxjs": "^7.8.1"
   },
   "repository": {
     "type": "git",