Add dependabot and lint scripts

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "pip" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 100
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 100

scripts/format

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+#!/usr/bin/env bash
+
+set -e
+
+cd "$(dirname "$0")/.."
+
+ruff format .

scripts/lint

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+#!/usr/bin/env bash
+
+set -e
+
+cd "$(dirname "$0")/.."
+
+ruff check

scripts/lint-fix

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+#!/usr/bin/env bash
+
+set -e
+
+cd "$(dirname "$0")/.."
+
+ruff check . --fix