Add ignore flag to health workflows

[mosuem]

Add the ability to ignore certain files for coverage or license testing, for example for generated files. Also add ignoring packages completely.

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[github-actions]

PR Health

Breaking changes ✔️

Details

Package	Change	Current Version	New Version	Needed Version	Looking good?
firehose	Non-Breaking	0.6.0	0.6.1	0.6.1	✔️

Changelog Entry ✔️

Details

Package	Changed Files

Changes to files need to be accounted for in their respective changelogs.

Coverage ✔️

Details

File	Coverage
pkgs/firehose/lib/firehose.dart	💚 29 %
pkgs/firehose/lib/src/github.dart	💚 68 %
pkgs/firehose/lib/src/health/changelog.dart	💚 97 %
pkgs/firehose/lib/src/health/coverage.dart	💚 76 %
pkgs/firehose/lib/src/health/health.dart	💚 93 %
pkgs/firehose/lib/src/health/license.dart	💚 100 %
pkgs/firehose/lib/src/repo.dart	💚 93 %

This check for test coverage is informational (issues shown here will not fail the PR).

License Headers ✔️

Details

// Copyright (c) 2024, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

Files
no missing headers

All source files should start with a license header.

Package publish validation ✔️

Details

Package	Version	Status
package:firehose	0.6.1	ready to publish
package:dart_flutter_team_lints	2.1.1	already published at pub.dev

Documentation at https://github.com/dart-lang/ecosystem/wiki/Publishing-automation.

[github-actions]

Package publishing

Package	Version	Status	Publish tag (post-merge)
package:firehose	0.6.1	ready to publish	firehose-v0.6.1
package:dart_flutter_team_lints	2.1.1	already published at pub.dev

Documentation at https://github.com/dart-lang/ecosystem/wiki/Publishing-automation.

[devoncarew]

Perhaps also update the health check docs at https://github.com/dart-lang/ecosystem/tree/main/pkgs/firehose#health?

(and separately, I wonder if health check docs are reasonably discoverable for people)