fix: remove breaking-change tag after semver passes (delta-io#1621)

## What changes are proposed in this pull request?
In the past, we automatically run `cargo-semver-checks` to add
`breaking-change` tag for PRs. However, the label never been removed
after the semver passes. This leads to some PRs incorrectly marked as
breaking.(e.g. This PR is marked as breaking since I didnt rebase to
main and lack of some pub APIs in main. The tag will not be removed
after I rebase).
<!--
**Uncomment** this section if there are any changes affecting public
APIs. Else, **delete** this section.
### This PR affects the following public APIs
If there are breaking changes, please ensure the `breaking-changes`
label gets added by CI, and describe why the changes are needed.
Note that _new_ public APIs are not considered breaking.
-->

## How was this change tested?
Tested in my fork repo. For the `no-breaking` PR
dengsh12#3, label was not added.
For the `breaking` PR
dengsh12#2, at first it is
breaking, after that I restored the breaked API. We can see the robot
add the `breaking-change` label first, and then removed it.

Author: dengsh12

.github/workflows/semver-checks.yml

@@ -53,7 +53,7 @@ jobs:
           echo "check_status=success" >> $GITHUB_OUTPUT
     outputs:
       check_status: ${{ steps.set_failure.outputs.check_status || steps.set_success.outputs.check_status }}
-  add_label_if_needed:
+  update_label_if_needed:
     needs: check_if_pr_breaks_semver
     runs-on: ubuntu-latest
     permissions:
@@ -66,6 +66,11 @@ jobs:
         uses: actions-ecosystem/action-add-labels@v1
         with:
           labels: breaking-change
+      - name: Remove breaking-change label
+        if: needs.check_if_pr_breaks_semver.outputs.check_status == 'success' && contains(github.event.pull_request.labels.*.name, 'breaking-change')
+        uses: actions-ecosystem/action-remove-labels@v1
+        with:
+          labels: breaking-change
       - name: On Success
         if: needs.check_if_pr_breaks_semver.outputs.check_status == 'success'
         run: |