helm: increase rate limit values

[tiborsimko]

Current behaviour

After migration of the base image to Ubuntu 24.04, the REANA server replies "faster" to the client. This leads to hitting the rate limits, for example:

$ reana-dev run-example -c DEMO --submit-only
...
==> SUCCESS: File /data/ZZ4e12.root was successfully uploaded.
==> SUCCESS: File /data/DY101Jets12.root was successfully uploaded.
==> SUCCESS: File /data/DY1011.root was successfully uploaded.
==> SUCCESS: File /data/TTBar11.root was successfully uploaded.
==> ERROR: Something went wrong while uploading reana-demo-cms-h4l/data/DoubleMu11.root:
Too many requests in a given amount of time. Only "20 per 1 second" allowed.

Expected behaviour

The DEMO test suite should pass all the time.

We can achieve this by increasing the default rate limits for both production and development purposes to more permissive values.