Upgrade go to 1.21 in `go.mod` #10818

Job	Run time
Prepare	4s
Build native (x86_64, x86_64, x86_64-linux-android)	3m 49s
Build native (i686, x86, i686-linux-android)	3m 47s
Generate debug keystore	8s
Build native (aarch64, arm64-v8a, aarch64-linux-android)	3m 52s
Generate relay list	1m 16s
Build native (armv7, armeabi-v7a, armv7-linux-androideabi)	3m 50s
Run lint and test tasks (testDebugUnitTest -x :test:arch:testDebugUnitTest :app:testOssProdDebugU...	6m 54s
Run lint and test tasks (:test:arch:test --rerun-tasks)	3m 15s
Run lint and test tasks (detekt)	2m 43s
Run lint and test tasks (lint)	7m 31s
Build app	5m 41s
Build instrumented test packages (app, assembleOssProdAndroidTest, android/app/build/outputs/apk)	4m 15s
Build instrumented test packages (mockapi, :test:mockapi:assemble, android/test/mockapi/build/out...	5m 31s
Build instrumented test packages (e2e, :test:e2e:assemble, android/test/e2e/build/outputs/apk)	5m 52s
Run instrumented tests (app, android/app/build/outputs/apk, 1)	9m 47s
Run firebase tests	0s
Run instrumented e2e tests	0s
Run instrumented tests (mockapi, android/test/mockapi/build/outputs/apk, 0)	7s
	1h 8m 22s

Provide feedback