[WIP] fix cvat version string

[wang-tf]

It will be error if using CVAT_VERSION without 'v'.

Motivation and context

How has this been tested?

Checklist

• I submit my changes into the develop branch
• I have added a description of my changes into the CHANGELOG file
• I have updated the documentation accordingly
• I have added tests to cover my changes
• I have linked related issues (see GitHub docs)
• I have increased versions of npm packages if it is necessary
  (cvat-canvas,
  cvat-core,
  cvat-data and
  cvat-ui)

License

• I submit my code changes under the same MIT License that covers the project.
  Feel free to contact the maintainers if that's a concern.

[nmanovic]

@wang-tf , thanks for the contribution. I'm not sure that the change is correct. Could you please check? At least the line below should work with the change:

wget https://github.com/opencv/cvat/archive/refs/tags/v${CVAT_VERSION}.zip

[wang-tf]

Oh, you are right. In my test, adding export CVAT_VERSION="v2.3.0" before docker compose pull can fix this error.

Otherwise, the error will appear like:
ERROR: for cvat_server manifest for cvat/server:2.3.0 not found: manifest unknown: manifest unknown

[zhiltsov-max]

Already fixed in #5585. Thank you for your participation!