[infra] Fix CI

[dcharkes]

The argument was always ignored, but https://dart-review.googlesource.com/c/sdk/+/506242 started to throw an error on ignored arguments.

[github-actions]

Package publishing

Package	Version	Status	Publish tag (post-merge)
package:code_assets	1.2.1	already published at pub.dev
package:data_assets	0.20.0	already published at pub.dev
package:ffi	2.2.0	already published at pub.dev
package:hooks	2.0.1	already published at pub.dev
package:hooks_runner	1.4.0	already published at pub.dev
package:jni_flutter	1.0.1	already published at pub.dev
package:native_toolchain_c	0.19.1	already published at pub.dev
package:record_use	0.6.1-wip	WIP (no publish necessary)
package:swift2objc	0.2.0	already published at pub.dev
package:swiftgen	0.1.3	ready to publish	swiftgen-v0.1.3

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