Update to upstream v12.2.1

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -0,0 +1,27 @@
+name: Bug Report
+description: File a bug report to help us improve.
+labels: ["kind/triage"]
+body:
+  - type: textarea
+    attributes:
+      label: Problem Description
+      value: |
+        A clear and concise description of what the bug is.
+
+        #### Steps to reproduce the behavior:
+        1. 
+        2. 
+        3. 
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: System Information
+      description: Paste the output of "mitmproxy --version" here.
+      render: raw
+  - type: checkboxes
+    attributes:
+      label: 'Checklist'
+      options:
+        - label: This bug affects the [latest mitmproxy release](https://github.com/mitmproxy/mitmproxy/releases).
+          required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -1,6 +1,5 @@
 blank_issues_enabled: false
 contact_links:
     - name: Support
-      url: https://stackoverflow.com/questions/tagged/mitmproxy
-      about: Please do not use GitHub for support requests.
-             If you have questions on how to use mitmproxy, please ask them on StackOverflow!
+      url: https://github.com/mitmproxy/mitmproxy/discussions
+      about: If you have questions on how to use mitmproxy, ask them on the discussions page!

.github/dependabot.yml

@@ -0,0 +1,38 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    groups:
+      "github actions":
+        patterns:
+          - "*"
+  - package-ecosystem: pip
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    open-pull-requests-limit: 10
+    groups:
+      pytest:
+        patterns:
+        - "pytest*"
+        - "hypothesis"
+      pyinstaller:
+        patterns:
+        - "pyinstaller*"
+      mypy:
+        patterns:
+        - "types-*"
+        - "mypy"
+      openssl:
+        patterns:
+        - "pyopenssl"
+        - "cryptography"
+      tox:
+        patterns:
+          - "tox*"
+      deploy:
+        patterns:
+          - "awscli"
+          - "twine"

.github/node-version.txt

@@ -0,0 +1 @@
+24

.github/workflows/autofix.yml

@@ -0,0 +1,43 @@
+name: autofix.ci
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  autofix:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: mhils/workflows/checkout@481eaf3cc2ad8eb664a4c9a20cc635d46e02b5c6
+      - uses: mhils/workflows/setup-uv@481eaf3cc2ad8eb664a4c9a20cc635d46e02b5c6
+
+      # If we need to update the lockfile (--check returns an error),
+      # make sure to upgrade everything.
+      - run: uv lock --check || uv lock --upgrade
+
+      - uses: mhils/workflows/uv-sync@481eaf3cc2ad8eb664a4c9a20cc635d46e02b5c6
+
+      - run: ruff check --fix-only .
+      - run: ruff format .
+
+      - run: web/gen/all
+
+      - uses: actions/setup-node@v6
+        with:
+          node-version-file: .github/node-version.txt
+      - run: npm ci
+        working-directory: web
+      - run: npm run eslint
+        working-directory: web
+        continue-on-error: true
+      - run: npm run prettier
+        working-directory: web
+
+      - uses: mhils/add-pr-ref-in-changelog@main
+
+      - uses: autofix-ci/action@635ffb0c9798bd160680f18fd73371e355b85f27