- remove instrumented binary, as it confuses downstream applications

- added ability to read user data from file (#93, thanks @Negashev)

- allow specification of existing public IP (closes #88, thanks @ItsReddi)
- fix server being assigned a public IP even when explicitly disabled (closes #90, thanks @makmarius)
- fix version display (closes #92, thanks @makmarius)
- add instrumented builds

- added support for user-specified primary IPs (#88, thanks @ItsReddi)

- check for empty string rather than (potentially user-supplied) default image
- use default image as fallback only after flags have been processed

- update dependencies
- fix some missing doc comments

Add the possibility to change SSH Port and SSH User

# Conflicts:
#	.github/workflows/manual-build.yml
#	driver.go
#	go.sum

feat: add placement groups

- documentation
- update readme for next version

- add placement groups using --hetzner-placement-group
- auto-created pgs will be deleted with the last server within them
- added --hetzner-auto-spread for a driver-managed placement group

Closes: #72

- download links
- document #69

Resolve #69: add flag to define key labels

Break up server creation logic + some doc comments

- add arm64 architecture for M1 based Macs (thanks @cedricziel)

To make goreleaser recognize arm64, use go 1.16 here as well.