feat: add goreleaser for build and release steps

[mr-karan]

Closes #8

Test

goreleaser --snapshot --clean

 ./dist/pb_linux_amd64_v1/pb 
Error: no command or flag supplied
Usage:
  pb [flags]
  pb [command]

Available Commands:
  help        Help about any command
  profile     Manage profiles
  query       Open SQL query prompt
  stream      Manage streams
  user        Manage users
  version     Print version

Flags:
  -h, --help      help for pb
  -v, --version   Print version

Use "pb [command] --help" for more information about a command.

 docker run --rm parseablehq/pb profile

use profile command to configure (multiple) Parseable instances. Each profile takes a URL and credentials.

Usage:
  pb profile [command]

Available Commands:
  add         Add a new profile
  default     Set default profile to use with all commands
  list        List all added profiles
  remove      Delete a profile

Flags:
  -h, --help   help for profile

Use "pb profile [command] --help" for more information about a command.

Notes

• Not really sure why -tags=kqueue is added in Makefile. For now, I've kept it consistent in .goreleaser.yml, but if this has to be changed, we can.
• The ldflags part (go run buildscripts/gen-ldflags.go $(VERSION)) is a bit complicated to run in .goreleaser.yml. I ran it manually and templated the same string in .goreleaser.yml, hope that's fine.

Let me know if any changes are required!

[nitisht]

looks great @mr-karan . we’ll test and merge shortly