fix(clock): keep micros in monthsAgo, monthsFromNow and yearsAgo

[Goddchen]

• Thanks for your contribution! Please replace this text with a description of what this PR is changing or adding and why, list any relevant issues, and review the contribution guidelines below.

I ran into the issue that after calling Clock.monthsAgo(...) the microSecond field of my initial timestamp got lost (now was 0).
The field was simply not set in the code. I also found that monthsFromNow and yearsAgo had the same issue.

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[Goddchen]

Ping, is this still alive?

[mosuem]

This may have been a leftover from dart-lang/sdk#44876, just guessing. Thanks for the fix!

[github-actions]

Package publishing

Package	Version	Status	Publish tag (post-merge)
package:bazel_worker	1.1.3	already published at pub.dev
package:benchmark_harness	2.3.1	already published at pub.dev
package:boolean_selector	2.1.2	already published at pub.dev
package:browser_launcher	1.1.3	already published at pub.dev
package:cli_config	0.2.1-wip	WIP (no publish necessary)
package:cli_util	0.4.2	already published at pub.dev
package:clock	1.1.3-wip	WIP (no publish necessary)
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[github-actions]

PR Health

Breaking changes ✔️

Package	Change	Current Version	New Version	Needed Version	Looking good?
clock	None	1.1.2	1.1.3-wip	1.1.2	✔️

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pkgs/clock/lib/src/clock.dart	💚 92 %

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pkgs/boolean_selector/example/example.dart
pkgs/clock/lib/clock.dart
pkgs/clock/lib/src/default.dart
pkgs/clock/lib/src/stopwatch.dart
pkgs/clock/lib/src/utils.dart
pkgs/clock/test/default_test.dart
pkgs/clock/test/stopwatch_test.dart
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pkgs/coverage/lib/src/coverage_options.dart
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pkgs/html/lib/src/encoding_parser.dart
pkgs/html/lib/src/html_input_stream.dart
pkgs/html/lib/src/list_proxy.dart
pkgs/html/lib/src/query_selector.dart
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pkgs/html/lib/src/treebuilder.dart
pkgs/html/lib/src/utils.dart
pkgs/html/test/dom_test.dart
pkgs/html/test/parser_feature_test.dart
pkgs/html/test/parser_test.dart
pkgs/html/test/query_selector_test.dart
pkgs/html/test/selectors/level1_baseline_test.dart
pkgs/html/test/selectors/level1_lib.dart
pkgs/html/test/selectors/selectors.dart
pkgs/html/test/support.dart
pkgs/html/test/tokenizer_test.dart
pkgs/pubspec_parse/test/git_uri_test.dart
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pkgs/yaml_edit/example/example.dart

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[Goddchen]

thanks @mosuem , yeah, possible, it looks similar.
Do you need anything from my side before this can be merged?

[kevmoo]

I'll leave @mosuem to merge. Thanks so much for this!