Add tooltip for pipeline actions

What does this MR do?

As per #222511 (closed), this MR adds/restores tooltips for the pipeline actions:

• Re-deploy
• Cancel

Screenshots

Re-deploy	Cancel

Additional

The hyphen on Re-deploy has been picked based on the one in the environments section:

v-gl-tooltip is just an alias for VueBoostrap tooltip: while the documentation states that focus is the default trigger, it seems that without setting it explicitly the behaviour is not the desired one.

no .hover	.hover
before	after

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team