fix: Goreleaser for build and release (#2189)

* Add goreleaser for building binaries
* Update CONTRIBUTING.md
* Break release scripts for goreleaser

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

hack/release-tag.sh

@@ -9,18 +9,7 @@ if [ -z $version ]; then
     exit 1
 fi
 
-gittag=$version
-prefix="v"
-gopkgtag=${version/#/${prefix}}
-
-if [[ ${version} == v* ]]; then # if version starts with "v", don't append prefix.
-    gopkgtag=${version}
-fi
-
 # tag the release
-doit git tag $gittag
-doit git tag -a $gopkgtag -m "Fission $gopkgtag"
-
+doit git tag $version
 # push tag
-doit git push origin $gittag
-doit git push origin $gopkgtag
+doit git push origin $version