fix: Resolve version before checking arch

Fixes a bug where `gimme module` reports the following error
on macOS with ARM64.

    error: arm64 is not supported by this go version
    try go1.5 or newer

This occurs because the check for architecture
is performed before the `module` version
turns into a real version number with `_resolve_version`.

Fix by resolving version number before checking the architecture.

gimme

@@ -904,6 +904,14 @@ if [[ -n "${2}" ]]; then
 	GIMME_VERSION_PREFIX="${2}"
 fi
 
+case "${GIMME_GO_VERSION}" in
+stable) GIMME_GO_VERSION=$(_get_curr_stable) ;;
+oldstable) GIMME_GO_VERSION=$(_get_old_stable) ;;
+module) GIMME_GO_VERSION=$(_resolve_version module) ;;
+esac
+
+_assert_version_given "$@"
+
 case "${GIMME_ARCH}" in
 x86_64) GIMME_ARCH=amd64 ;;
 x86) GIMME_ARCH=386 ;;
@@ -927,14 +935,6 @@ arm64) ;;
 arm*) GIMME_HOSTARCH=arm ;;
 esac
 
-case "${GIMME_GO_VERSION}" in
-stable) GIMME_GO_VERSION=$(_get_curr_stable) ;;
-oldstable) GIMME_GO_VERSION=$(_get_old_stable) ;;
-module) GIMME_GO_VERSION=$(_resolve_version module) ;;
-esac
-
-_assert_version_given "$@"
-
 ((force_install)) && _wipe_version "${GIMME_GO_VERSION}"
 
 unset GOARCH