Changes

feat: update auto flow jobs for release 9.x (#3411)

This pull request includes several updates across multiple
`postsubmits.yaml` and `periodics.yaml` files. The changes primarily
focus on updating the Deno image versions, modifying the command
formatting, and adjusting branch regex patterns for better
compatibility.

### Updates to Deno image versions and command formatting:

* Updated the Deno image version from `1.45.5` to `2.2.2` and
reformatted the command structure in
`prow-jobs/pingcap-inc/enterprise-extensions/postsubmits.yaml`.
* Applied the same Deno image version update and command reformatting in
`prow-jobs/pingcap/community/postsubmits.yaml`.
* Similarly updated the Deno image version and command structure in
`prow-jobs/pingcap/ng-monitoring/postsubmits.yaml`.
[[1]](diffhunk://#diff-9df894993d59fb9e4cd03fbfeebbac188222f962cfd57dfefcad718f7d832c51L15-R20)
[[2]](diffhunk://#diff-9df894993d59fb9e4cd03fbfeebbac188222f962cfd57dfefcad718f7d832c51L49-R62)
* Updated the Deno image version and command format in
`prow-jobs/tikv/community/postsubmits.yaml`.

### Adjustments to branch regex patterns:

* Modified the branch regex patterns to better match release branches in
`prow-jobs/pingcap-inc/enterprise-extensions/postsubmits.yaml`.
* Updated the branch regex pattern in
`prow-jobs/pingcap/ng-monitoring/postsubmits.yaml` to include beta
versions.
* Adjusted the branch regex pattern in
`prow-jobs/pingcap/tidb/common-postsubmits.yaml` to include beta
versions.

### Addition of a new periodic job:

* Added a new periodic job `periodic-update-pingcap-monitoring-9.0` in
`prow-jobs/pingcap/monitoring/periodics.yaml` with specific
configurations.
 (commit: 74a61c5)