Feature: Add Dropdown for externalCiArtifact with Docker Tag Selection

[akshatsinha007]

🔖 Feature description

Currently, specifying the externalCiArtifact requires users to manually input the entire Docker image path, such as docker.io/repository/image:tag . This process is prone to human error and can be tedious.

🎤 Pitch / Usecases

Introduce a dropdown menu that allows users to select the Docker tag.
Example : docker.io/repository/image:tag:v3.10.1
here just the tag v3.10.1 would be changing so rest part can be kept as a variable

🔄️ Alternative

No response

👀 Have you spent some time to check if this issue has been raised before?

• I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct

[manchal22]

Hi guys, can we also get a dropdown for imageDigest?
cc: @pawan-mehta-dt

[abhibhaw]

As discussed with @pawan-mehta-dt Since we have provided a key to provide image tag instead of full image and it's combination with global fixing value, this is not required as of now. Feel free to reopen this @manchal22 If the requirement still exists