Fix CI (#2)

* fix CI

.github/workflows/ci.yml

@@ -1,11 +1,11 @@
 name: Continuous Integration
 
 on:
-  - push:
+  push:
     branches:
       - main
-  - pull_request
-  - workflow_dispatch
+  pull_request:
+    types: [opened, synchronize]
 
 jobs:
   ci:
@@ -15,12 +15,6 @@ jobs:
       matrix:
         otp: ['25', '26', '27']
         rebar3: ['3']
-        # latest rebar3 versions that do not give problems with selected OTPs
-        include:
-          - otp: '23'
-            rebar3: '3.20.0'
-          - otp: '24'
-            rebar3: '3.23.0'
     steps:
 
       - uses: actions/checkout@v2

rebar.config

@@ -1,5 +1,13 @@
 {erl_opts, [debug_info]}.
+
 {deps, [
     hackney,
     jsx
 ]}.
+
+{dialyzer, [
+    {warnings, [
+        error_handling,
+        no_unknown
+    ]}
+]}.

src/rebar3_grisp_io_io.erl

@@ -51,7 +51,7 @@ success(Msg, Args) ->
 
 -spec do_ask(Prompt, Type) -> UserInput | no_return() when
       Type      :: input_type(),
-      Prompt    :: binary(),
+      Prompt    :: string(),
       UserInput :: unicode:chardata().
 do_ask(Prompt, password) ->
     NewPrompt = erlang:iolist_to_binary([Prompt, " > "]),