Merge branch 'arch' into 'master'

Allow running icinga-provide-go $ARCH

See merge request !4

icinga-provide-go

 #!/bin/bash
 
 VERSION_GO="1.16.5"
+ARCH_GO="${1:-amd64}"
 
 set -ex
 
 echo "Downloading Go Version ${VERSION_GO}"
-curl -LO https://golang.org/dl/go${VERSION_GO}.linux-amd64.tar.gz
+curl -LO "https://golang.org/dl/go${VERSION_GO}.linux-${ARCH_GO}.tar.gz"
 
 rm -rf /usr/local/go
 
 echo "Unpacking Go"
-tar -C /usr/local -xzf go${VERSION_GO}.linux-amd64.tar.gz
+tar -C /usr/local -xzf "go${VERSION_GO}.linux-${ARCH_GO}.tar.gz"
 
 echo "Deleting Go Binary Archive"
-rm -rf go${VERSION_GO}.linux-amd64.tar.gz
+rm -rf "go${VERSION_GO}.linux-${ARCH_GO}.tar.gz"
 
 ln -s /usr/local/go/bin/* /usr/local/bin