Merge pull request #8 from TPei/update_crystal

update crystal to 0.31.1

Author: TPei

template/crystal/Dockerfile

@@ -1,4 +1,4 @@
-FROM crystallang/crystal:0.30.1 as builder
+FROM crystallang/crystal:0.31.1 as builder
 
 RUN apt update \
     && apt install -y curl \
@@ -13,7 +13,7 @@ COPY function/shard.yml shard.yml
 RUN shards install
 RUN crystal build main.cr -o handler --release
 
-FROM crystallang/crystal:0.30.1
+FROM crystallang/crystal:0.31.1
 RUN apt install ca-certificates
 
 # Add non root user

template/crystal/template.yml

@@ -1,6 +1,6 @@
 language: crystal
 fprocess: ./handler
 welcome_message: |
-  You have created a new function which uses crystal 0.30.1.
+  You have created a new function which uses crystal 0.31.1.
   To include third-party dependencies, use a vendoring tool like shards:
   shards documentation: https://github.com/crystal-lang/shards