upgrade dockerfile to crystal 1.11.2

Author: elbywan

Dockerfile

@@ -1,4 +1,4 @@
-FROM crystallang/crystal:1.11.0-alpine
+FROM crystallang/crystal:1.11.2-alpine
 
 WORKDIR /app
 
@@ -9,7 +9,7 @@ RUN apk add --update --no-cache --force-overwrite \
 # Build crystalline.
 COPY . /app/
 
-RUN git clone -b 1.11.0 --depth=1 https://github.com/crystal-lang/crystal \
+RUN git clone -b 1.11.2 --depth=1 https://github.com/crystal-lang/crystal \
       && make -C crystal llvm_ext \
       && CRYSTAL_PATH=crystal/src:lib shards build crystalline \
       --no-debug --progress --stats --production --static --release \