fix: Allow for non x86 macs in Go install script (influxdata#9982)

scripts/installgo_mac.sh

@@ -2,12 +2,19 @@
 
 set -eux
 
-GO_ARCH="darwin-amd64"
+ARCH=$(uname -m)
 GO_VERSION="1.17.2"
-GO_VERSION_SHA="7914497a302a132a465d33f5ee044ce05568bacdb390ab805cb75a3435a23f94" # from https://golang.org/dl
+if [ "$ARCH" = 'arm64' ]; then
+    GO_ARCH="darwin-arm64"
+    GO_VERSION_SHA="ce8771bd3edfb5b28104084b56bbb532eeb47fbb7769c3e664c6223712c30904" # from https://golang.org/dl
+elif [ "$ARCH" = 'x86_64' ]; then
+    GO_ARCH="darwin-amd64"
+    GO_VERSION_SHA="7914497a302a132a465d33f5ee044ce05568bacdb390ab805cb75a3435a23f94" # from https://golang.org/dl
+fi
 
 # This path is cachable. (Saving in /usr/local/ would cause issues restoring the cache.)
 path="/usr/local/Cellar"
+sudo mkdir -p ${path}
 
 # Download Go and verify Go tarball. (Note: we aren't using brew because
 # it is slow to update and we can't pull specific minor versions.)
@@ -21,8 +28,9 @@ setup_go () {
 
     sudo rm -rf ${path}/go
     sudo tar -C $path -xzf go${GO_VERSION}.${GO_ARCH}.tar.gz
-    ln -sf ${path}/go/bin/go /usr/local/bin/go
-    ln -sf ${path}/go/bin/gofmt /usr/local/bin/gofmt
+    sudo mkdir -p /usr/local/bin
+    sudo ln -sf ${path}/go/bin/go /usr/local/bin/go
+    sudo ln -sf ${path}/go/bin/gofmt /usr/local/bin/gofmt
 }
 
 if command -v go >/dev/null 2>&1; then