Update packages versions and related code

[spirifoxy]

[agilob]

I tested this and flutter pub run build_runner build --delete-conflicting-outputs falls into infinite loop when run and failed futures are present in logs:

[INFO] Generating SDK summary...
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
.. my code here
[SEVERE] inject_generator:inject_generator on test/widget_test.dart:

Bad state: Future already completed
[INFO] 3.1s elapsed, 1/17 actions completed.
[INFO] 4.2s elapsed, 1/17 actions completed.
[INFO] 5.3s elapsed, 1/17 actions completed.
[INFO] 6.4s elapsed, 1/17 actions completed.
[INFO] 7.5s elapsed, 1/17 actions completed.
[INFO] 8.6s elapsed, 1/17 actions completed.
[INFO] 9.7s elapsed, 1/17 actions completed.
[INFO] 10.8s elapsed, 1/17 actions completed.
[INFO] 11.9s elapsed, 1/17 actions completed.
[INFO] 13.0s elapsed, 1/17 actions completed.
[INFO] 14.1s elapsed, 1/17 actions completed.
[INFO] 15.2s elapsed, 1/17 actions completed.
[INFO] 16.3s elapsed, 1/17 actions completed.
[WARNING] No actions completed for 15.0s, waiting on:
.. my code here
.. and 11 more

[INFO] 18.1s elapsed, 1/17 actions completed.
[INFO] 19.2s elapsed, 1/17 actions completed.
[INFO] 20.3s elapsed, 1/17 actions completed.
[INFO] 21.4s elapsed, 1/17 actions completed.
[INFO] 22.5s elapsed, 1/17 actions completed.
[INFO] 23.6s elapsed, 1/17 actions completed.
[INFO] 24.7s elapsed, 1/17 actions completed.
[INFO] 25.8s elapsed, 1/17 actions completed.
[INFO] 26.9s elapsed, 1/17 actions completed.
[INFO] 28.0s elapsed, 1/17 actions completed.
[INFO] 29.1s elapsed, 1/17 actions completed.
[INFO] 30.2s elapsed, 1/17 actions completed.
[INFO] 31.3s elapsed, 1/17 actions completed.
[WARNING] No actions completed for 15.1s, waiting on:
.. my code here
.. and 11 more

[INFO] 33.2s elapsed, 1/17 actions completed.
[INFO] 34.3s elapsed, 1/17 actions completed.
[INFO] 35.4s elapsed, 1/17 actions completed.
[INFO] 36.5s elapsed, 1/17 actions completed.
[INFO] 37.6s elapsed, 1/17 actions completed.

flutter --version
Flutter 1.22.4 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 1aafb3a8b9 (7 days ago) • 2020-11-13 09:59:28 -0800
Engine • revision 2c956a31c0
Tools • Dart 2.10.4