Lock to Crystal 1.4 or later (#12)

Author: jwoertink

.github/workflows/ci.yml

@@ -12,9 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         crystal_version:
-          - 1.0.0
-          - 1.1.0
-          - 1.2.0
+          - latest
         experimental:
           - false
         include:
@@ -25,7 +23,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Install Crystal
-        uses: oprypin/install-crystal@v1
+        uses: crystal-lang/install-crystal@v1
         with:
           crystal: ${{ matrix.crystal_version }}
       - name: Install shards
@@ -39,9 +37,8 @@ jobs:
       fail-fast: false
       matrix:
         crystal_version:
-          - 1.0.0
-          - 1.1.0
-          - 1.2.0
+          - 1.4.0
+          - latest
         experimental:
           - false
         include:
@@ -52,7 +49,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Install Crystal
-        uses: oprypin/install-crystal@v1
+        uses: crystal-lang/install-crystal@v1
         with:
           crystal: ${{ matrix.crystal_version }}
       - name: Install shards

shard.yml

@@ -4,7 +4,7 @@ version: 0.2.1
 authors:
   - Matthew McGarvey <[email protected]>
 
-crystal: '>= 1.0.0'
+crystal: '>= 1.4.0'
 
 license: MIT
 
@@ -22,4 +22,4 @@ development_dependencies:
     version: ~> 0.1.1
   ameba:
     github: crystal-ameba/ameba
-    version: ~> 0.14.2
+    version: ~> 1.0.0