MED-100 Make read_timeout default to None, only use it if set #789

	# Copyright 2022-2022 DataStax, Inc.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
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	on:
	pull_request_target:
	types: [opened, edited, reopened, synchronize]

	jobs:
	check_pull_requests:
	runs-on: ubuntu-latest
	name: Check linked issues
	steps:
	- uses: nearform/github-action-check-linked-issues@v1
	continue-on-error: true
	id: check-linked-issues
	with:
	exclude-branches: "dependabot/**"
	comment: true

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