chore(goreleaser): fix asset names

[suzuki-shunsuke]

Close #31

Remove unnecessary periods.

Test

It looks good.

https://github.com/suzuki-shunsuke/tenv/releases/tag/v1.0.7-2

tenv_v1.0.7-2_checksums.txt
tenv_v1.0.7-2_Darwin_arm64.tar.gz
tenv_v1.0.7-2_Darwin_x86_64.tar.gz
tenv_v1.0.7-2_Freebsd_arm64.tar.gz
tenv_v1.0.7-2_Freebsd_armv6.tar.gz
tenv_v1.0.7-2_Freebsd_i386.tar.gz
tenv_v1.0.7-2_Freebsd_x86_64.tar.gz
tenv_v1.0.7-2_Linux_arm64.tar.gz
tenv_v1.0.7-2_Linux_armv6.tar.gz
tenv_v1.0.7-2_Linux_i386.tar.gz
tenv_v1.0.7-2_Linux_x86_64.tar.gz
tenv_v1.0.7-2_Openbsd_arm64.tar.gz
tenv_v1.0.7-2_Openbsd_armv6.tar.gz
tenv_v1.0.7-2_Openbsd_i386.tar.gz
tenv_v1.0.7-2_Openbsd_x86_64.tar.gz
tenv_v1.0.7-2_Solaris_x86_64.tar.gz
tenv_v1.0.7-2_Windows_arm64.zip
tenv_v1.0.7-2_Windows_armv6.zip
tenv_v1.0.7-2_Windows_i386.zip
tenv_v1.0.7-2_Windows_x86_64.zip

I also confirmed this issue isn't fixed in the main branch.

https://github.com/suzuki-shunsuke/tenv/releases/tag/v1.0.7-3

[kvendingoldo]

LGTM!