Configure slang properly. Disable nightly install. CC @spencer-lunarg

Author: mattgodbolt

bin/yaml/slang.yaml

@@ -3,13 +3,9 @@ compilers:
     slangc:
       type: tarballs
       dir: slang-{name}
+      untar_dir: .
       url: https://github.com/shader-slang/slang/releases/download/v{name}/slang-{name}-linux-x86_64-glibc-2.17.tar.gz
-      folder: bin
-      check_exe: slangc -version
+      compression: gz
+      check_exe: bin/slangc -version
       targets:
         - "2024.14.6"
-      nightly:
-        if: nightly
-        install_always: true
-        targets:
-          - latest