Upgrade: [dependabot] - bump NHSDigital/eps-common-workflows/.github/workflows/dependabot-auto-approve-and-merge.yml from 5.6.4 to 5.6.6 #11390

Job	Run time
get_commit_id	3s
pr_title_format_check / pr_title_format_check	5s
get_config_values / get_config_values	8s
get_config_values / verify_attestation	19s
quality_checks / IaC-validation	3m 34s
quality_checks / quality_checks	6m 30s
tag_release / tag_release	1m 58s
quality_checks / get_docker_images_to_scan	1m 32s
quality_checks / docker_vulnerability_scan	0s
dependabot-auto-approve-and-merge	0s
get_issue_number	0s
release_code	0s
package_code	0s
release_sandbox_code	0s
	14m 9s

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