Changing dependency to gawk

Dockerfile

@@ -1,6 +1,6 @@
 FROM python:3-slim
 
-LABEL maintainer="Drew Short"
+LABEL maintainer="Drew Short <warrick@sothr.com>"
 
 ARG PYSPELLING_VERSION=2.5.1
 
@@ -15,7 +15,7 @@ RUN apt-get -y update \
     && apt-get -y --no-install-recommends install \
         aspell \
         aspell-en \
-        awk \
+        gawk \
         hunspell \
         hunspell-en-us \
         sed \