Add proxy to create-app tasks

Signed-off-by: enyineer <nico.enking@gmail.com>

yarn.lock

@@ -2802,6 +2802,8 @@ __metadata:
   dependencies:
     "@backstage/cli": "workspace:^"
     "@types/node": "npm:^20.16.0"
+    global-agent: "npm:^3.0.0"
+    undici: "npm:^7.2.3"
   languageName: unknown
   linkType: soft
 
@@ -3259,18 +3261,21 @@ __metadata:
     "@backstage/cli-common": "workspace:^"
     "@types/command-exists": "npm:^1.2.0"
     "@types/fs-extra": "npm:^11.0.0"
+    "@types/global-agent": "npm:^3"
     "@types/inquirer": "npm:^8.1.3"
     "@types/node": "npm:^20.16.0"
     "@types/recursive-readdir": "npm:^2.2.0"
     chalk: "npm:^4.0.0"
     commander: "npm:^12.0.0"
     fs-extra: "npm:^11.2.0"
+    global-agent: "npm:^3.0.0"
     handlebars: "npm:^4.7.3"
     inquirer: "npm:^8.2.0"
     msw: "npm:^2.0.0"
     nodemon: "npm:^3.0.1"
     ora: "npm:^5.3.0"
     recursive-readdir: "npm:^2.2.2"
+    undici: "npm:^7.2.3"
   bin:
     backstage-create-app: bin/backstage-create-app
   languageName: unknown
@@ -19972,6 +19977,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/global-agent@npm:^3":
+  version: 3.0.0
+  resolution: "@types/global-agent@npm:3.0.0"
+  checksum: 10/f961aaf493176e651dcb1bdb8f31b3f933f7ba86a74901c40399622e7f09621d84e0c12cca62ddee12bd8d783656359d25ec88aa57bba3fbcbd58f60f8cbdb18
+  languageName: node
+  linkType: hard
+
 "@types/google-protobuf@npm:^3.7.2":
   version: 3.15.12
   resolution: "@types/google-protobuf@npm:3.15.12"