Fix binder (#496)

* use poetry

* only run on PR

.github/workflows/codeql-analysis.yml

@@ -12,8 +12,6 @@
 name: "CodeQL"
 
 on:
-  push:
-    branches: [ main ]
   pull_request:
     # The branches below must be a subset of the branches above
     branches: [ main ]

.github/workflows/lint.yaml

@@ -1,7 +1,6 @@
 name: Check coding style
 
 on:
-  push:
   pull_request:
 
 jobs:

.github/workflows/pytest.yaml

@@ -4,7 +4,6 @@
 name: pytest
 
 on:
-  push:
   pull_request:
   schedule:
     - cron: '14 3 * * 1'  # at 03:14 on Monday.

postBuild

@@ -1,6 +1,7 @@
 #!/bin/bash
-
-pip install -r dev-requirements.txt
-
 git config --global user.name "John Doe"
 git config --global user.email johndoe@example.com
+
+pip install poetry
+poetry config virtualenvs.create false
+poetry install