bump SDK requirement to 2.6.0

ci: update test on multiple dart runtime (#120)

* ci: update test on multiple dart runtime

* fix: update dart version

* chore: update dart version

* chore: update analyzer version

* feat: bump sdk requirement to 2.6.0

1.2.2+1: feat: json stringify models in formdata (#116)

* feat: json stringify models in formdata

close #111

* chore: bump version to 1.2.2+2

hotfix 1.2.1+1 (#114)

* fix: cannot generate code when @Part with String

close #113

* chore: update version to 1.2.1+1

1.2.1: feat: add file list support to formdata

* fix: revert to use displayName

close #99

* feat: add formdata list parameter support

close #111

* docs: update status badge

1.2.0: Feature/add original response (#108)

* feat: add orignal response

close #81

* feat: add `HttpResponse`

* feat: update sample

* fix: fix code error

* docs: add change log

* test: add generating test

* test: add demo test for HttpResponse

1.1.0+1

chore: remove warnings of publish action

1.1.0

chore: remove warnings of publish action

integration test support

feat: add demo & test for list nested in a class (#77)

* feat: add demo & test for list nested in a class

* fix: fix analyzer issue

[1.0.0] dio 3.0 support

chore: bump version to 1.0.0

0.6.3

chore: remove dependency_overrides