Chore: Adjust CI configuration

Author: amotl

.github/FUNDING.yml

@@ -5,6 +5,11 @@ on:
   pull_request:
   workflow_dispatch:
 
+# Cancel in-progress jobs when pushing to the same branch.
+concurrency:
+  cancel-in-progress: true
+  group: ${{ github.workflow }}-${{ github.ref }}
+
 jobs:
   lint:
     runs-on: ubuntu-latest

.github/workflows/deploy-docs.yml

@@ -5,6 +5,11 @@ on:
     tags:
       - 'v*.*.*'
 
+# Cancel in-progress jobs when pushing to the same branch.
+concurrency:
+  cancel-in-progress: true
+  group: ${{ github.workflow }}-${{ github.ref }}
+
 jobs:
   # Build and configure package(s)
   build:

.github/workflows/main.yml

@@ -71,6 +71,9 @@ instance/
 # Sphinx documentation
 docs/_build/
 
+# PyCharm
+.idea
+
 # PyBuilder
 target/