Drop v from plugin versions to make it work with all the surrounding tooling

[tolzhabayev]

What went wrong?

What happened:

• Context Plugins: Versions starting with a "v" can't be selected by a specific version grafana#92669 (comment)

What did you expect to happen:

• Drop the v from the future plugin versions, it is not needed and it breaks a lot of areas (gcom-api, plugins cli, etc.) that do not expect it to be there.

How do we reproduce it?

Try installing it via plugins cli or env variables grafana/grafana#92669 (comment)

Grafana OnCall Version

latest

Product Area

Other

Grafana OnCall Platform?

None

User's Browser?

No response

Anything else to add?

No response

[joeyorlando]

This has been patched starting in v1.9.27 (via #5051):

❯ grafana cli plugins list-versions grafana-oncall-app
1.9.27
v1.9.26
v1.9.25
v1.9.24
v1.9.23
v1.9.22
v1.9.21
v1.9.20