Fails to install on MacOS Monterey

[pyrsmk]

Hi,

I have Crystal 1.9.0. Either by installing Ameba with brew or shards I have the following error :

❯ shards install
Resolving dependencies
Fetching https://github.com/crystal-ameba/ameba.git
Fetching https://gitlab.com/arctic-fox/spectator.git
Installing ameba (1.4.3)
Postinstall of ameba: make bin && make run_file
Failed postinstall of ameba on make bin && make run_file:
shards build -Dpreview_mt
Dependencies are satisfied
Building: ameba
Error target ameba failed to compile:
Showing last frame. Use --error-trace for full trace.

There was a problem expanding macro 'macro_5141739712'

Code in /usr/local/Cellar/crystal/1.9.0/share/crystal/src/yaml/serialization.cr:188:7

 188 | {% begin %}
       ^
Called macro defined in /usr/local/Cellar/crystal/1.9.0/share/crystal/src/yaml/serialization.cr:188:7

 188 | {% begin %}

Which expanded to:

 > 69 |                   
 > 70 | 
 > 71 |                   __temp_735 =
                          ^
Error: type must be Ameba::Severity, not (Ameba::Severity | Nil)

make[1]: *** [build] Error 1
make: *** [init] Error 1

[veelenga]

Duplicate of #372
Should be fixed #373

[veelenga]

@Sija we might need to release 1.5 to let people use a tagged Ameba version that supports Crystal 1.9.