update env parser dependency

commit-id:5b728d37

writer: resolve multilevel indirections

commit-id:34297a6c

replace omit with keep implementation

commit-id:1ccd13ae

support keep existing value attribute

commit-id:8abb026a

support omit writing fields

commit-id:58c96ead

continue iteration instead of returning

commit-id:982398f7

Support ignore attribute

commit-id:a066ba93

Duration support for default value

go mod rename package

commit-id:2ba82508

Rake gopher

commit-id:a0e949f2