specify literal gcc instead of jinja gcc

runners have gcc natively, we shouldn't need to go searching anaconda (which doesn't have the mac gcc builds) anyway

Author: JacksonBurns

.conda/meta.yaml

@@ -11,7 +11,7 @@ build:
 
 requirements:
   build:
-    - {{ compiler('gcc') }}
+    - gcc
   host:
     - conda-forge::cairo
     - conda-forge::cairocffi
@@ -176,4 +176,4 @@ test:
 about:
   home: https://github.com/ReactionMechanismGenerator/RMG-Py
   license: MIT
-  summary: "A program for automatically generating kinetic models of chemical reaction mechanisms."
+  summary: "A program for automatically generating kinetic models of chemical reaction mechanisms."