Deal with some of the many warnings we have when running tests 😬

[olaughter]

Description

1. Remove obsolete 'version' from docker compose file

2. Remove embeddings from fieldset
   Deals with the error:

   WARNING For schema '...', fieldset 'default': Tensor fields ['...']
   cannot be mixed with non-tensor fields ['...'] in the same fieldset.
   See https://docs.vespa.ai/en/reference/schema-reference.html#fieldset
   

3. Remove obsolete type assignment for summaries

   Deals with the warning for each field:

   WARNING For schema '...', summary field '...': Specifying the type is
   deprecated, ignored and will be an error in Vespa 9. Remove the type
   specification to silence this warning.
   
   
   

Proposed version

Please select the option below that is most relevant from the list below. This
will be used to generate the next tag version name during auto-tagging.

• Skip auto-tagging
• Patch
• Minor version
• Major version

Visit the Semver website to understand the
difference between MAJOR, MINOR, and PATCH versions.

Notes:

• If none of these options are selected, auto-tagging will fail
• Where multiple options are selected, the most senior option ticked will be
  used -- e.g. Major > Minor > Patch
• If you are selecting the version in the list above using the textbox, make
  sure your selected option is marked [x] with no spaces in between the
  brackets and the x

Type of change

Please select the option(s) below that are most relevant:

• Bug fix
• New feature
• Breaking change
• GitHub workflow update
• Documentation update
• Refactor legacy code
• Dependency update

How Has This Been Tested?

Please describe the tests that you added to verify your changes.

Reviewer Checklist

• The PR represents a single feature (small driveby fixes are also ok)
• The PR includes tests that are sufficient for the level of risk
• The code is sufficiently commented, particularly in hard-to-understand areas
• Any required documentation updates have been made
• Any TODOs added are captured in future tickets
• No FIXMEs remain