message: Allow major.minor protoc versions
diff: @@ -20,7 +20,7 @@ Function Get-ProtobufTag() {
  Function Add-Protoc() {
  param(
  [Parameter(Mandatory = $true, Position = 0, HelpMessage = 'The PHP version to be installed')]
  - [ValidatePattern('^latest$|^(v?)\d+\.\d+\.\d+$')]
  + [ValidatePattern('^latest$|^(v?)\d+\.\d+(\.\d+)?$')]
  [string] $protobuf_tag
  )
  $protobuf_tag = Get-ProtobufTag
  