Add goreleaser config

.gitignore

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+dist/

.goreleaser.yml

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+before:
+  hooks:
+    - go mod download
+
+builds:
+  - main: ./cmd/git-get/main.go
+    binary: "git-get"
+    goos:
+      - linux
+      - darwin
+      - windows
+
+archives:
+- replacements:
+    darwin: macOS
+    linux: Linux
+    windows: Windows
+    386: i386
+    amd64: x86_64
+
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'