Use simple quote instead of double quote

Future script will serialize this as ' anyways.

values-swh-application-versions.yaml

@@ -2,30 +2,30 @@
 # It's used to manage the automatic update of the environments
 
 swh_checker_deposit_image: softwareheritage/deposit_checkers
-swh_checker_deposit_image_version: "20220927.2"
+swh_checker_deposit_image_version: '20220927.2'
 swh_cookers_image: container-registry.softwareheritage.org/swh/infra/swh-apps/vault_cookers
-swh_cookers_image_version: "20221107.1"
+swh_cookers_image_version: '20221107.1'
 swh_graphql_image: softwareheritage/graphql
-swh_graphql_image_version: "20221006.2"
+swh_graphql_image_version: '20221006.2'
 swh_indexer_image: container-registry.softwareheritage.org/swh/infra/swh-apps/indexer
-swh_indexer_image_version: "20221130.1"
+swh_indexer_image_version: '20221130.1'
 swh_listers_image: container-registry.softwareheritage.org/swh/infra/swh-apps/lister
-swh_listers_image_version: "20221214.1"
+swh_listers_image_version: '20221214.1'
 swh_loaders_image: softwareheritage/loaders
-swh_loaders_image_version: "20220826.1"
+swh_loaders_image_version: '20220826.1'
 swh_loader_bzr_image: softwareheritage/loader_bzr
-swh_loader_bzr_image_version: "20220926.1"
+swh_loader_bzr_image_version: '20220926.1'
 swh_loader_cvs_image: softwareheritage/loader_cvs
-swh_loader_cvs_image_version: "20220926.1"
+swh_loader_cvs_image_version: '20220926.1'
 swh_loader_git_image: container-registry.softwareheritage.org/swh/infra/swh-apps/loader_git
-swh_loader_git_image_version: "20221104.2"
+swh_loader_git_image_version: '20221104.2'
 swh_loader_highpriority_image: container-registry.softwareheritage.org/swh/infra/swh-apps/loader_highpriority
-swh_loader_highpriority_image_version: "20221214.1"
+swh_loader_highpriority_image_version: '20221214.1'
 swh_loader_mercurial_image: softwareheritage/loader_mercurial
-swh_loader_mercurial_image_version: "20220926.1"
+swh_loader_mercurial_image_version: '20220926.1'
 swh_loader_package_image: softwareheritage/loader_package
-swh_loader_package_image_version: "20221026.1"
+swh_loader_package_image_version: '20221026.1'
 swh_loader_svn_image: container-registry.softwareheritage.org/swh/infra/swh-apps/loader_svn
-swh_loader_svn_image_version: "20221214.1"
+swh_loader_svn_image_version: '20221214.1'
 swh_storage_replayer_image: container-registry.softwareheritage.org/swh/infra/swh-apps/storage-replayer
-swh_storage_replayer_image_version: "20221227.1"
+swh_storage_replayer_image_version: '20221227.1'