add tests, workflow for haskell samples (#16290)

Author: wing328

.github/workflows/samples-haskell.yaml

@@ -0,0 +1,36 @@
+name: Samples Haskell
+
+on:
+  push:
+    paths:
+      - samples/server/petstore/haskell-yesod/**
+      - samples/server/petstore/haskell-servant/**
+      - samples/client/petstore/haskell-http-client/**
+  pull_request:
+    paths:
+      - samples/server/petstore/haskell-yesod/**
+      - samples/server/petstore/haskell-servant/**
+      - samples/client/petstore/haskell-http-client/**
+jobs:
+  build:
+    name: Build stack projects
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        sample:
+          # servers
+          - samples/server/petstore/haskell-yesod/
+          - samples/server/petstore/haskell-servant/
+          - samples/client/petstore/haskell-http-client/
+    steps:
+      - uses: actions/checkout@v3
+      - uses: haskell/actions/setup@v2
+        with:
+          # ghc-version: '8.8.4' # Exact version of ghc to use
+          # cabal-version: 'latest'. Omitted, but defaults to 'latest'
+          enable-stack: true
+          stack-version: 'latest'
+      - name: stack test
+        working-directory: ${{ matrix.sample }}
+        run: stack test

bin/configs/haskell-servant.yaml

@@ -1,4 +1,4 @@
 generatorName: haskell
 outputDir: samples/server/petstore/haskell-servant
-inputSpec: modules/openapi-generator/src/test/resources/2_0/petstore.yaml
+inputSpec: modules/openapi-generator/src/test/resources/3_0/haskell/petstore.yaml
 templateDir: modules/openapi-generator/src/main/resources/haskell-servant

…/configs/haskell-yesod-petstore-new.yaml bin/configs/haskell-yesod.yamlbin/configs/haskell-yesod-petstore-new.yaml renamed to bin/configs/haskell-yesod.yaml bin/configs/haskell-yesod-petstore-new.yaml renamed to bin/configs/haskell-yesod.yaml

@@ -1,6 +1,6 @@
 generatorName: haskell-yesod
 outputDir: samples/server/petstore/haskell-yesod
-inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore.yaml
+inputSpec: modules/openapi-generator/src/test/resources/3_0/haskell/petstore.yaml
 templateDir: modules/openapi-generator/src/main/resources/haskell-yesod
 additionalProperties:
   hideGenerationTimestamp: "true"