Less strict connection field env variable names

[emilys314]

https://issues.redhat.com/browse/RHOAIENG-19860

Description

This allows setting the env var of connection type fields to match this https://kubernetes.io/docs/concepts/configuration/secret/#restriction-names-data so this will allow us to use .dockerconfigjson as an env var in connections

How Has This Been Tested?

1. Create / edit connection type
2. add a new field named .dockerconfigjson and save
3. go to project and create a connection with that field

Test Impact

Update jest validation tests

Request review criteria:

Self checklist (all need to be checked):

• The developer has manually tested the changes and verified that the changes work
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has added tests or explained why testing cannot be added (unit or cypress tests for related changes)

If you have UI changes:

• Included any necessary screenshots or gifs if it was a UI change.
• Included tags to the UX team if it was a UI/UX change.

@simrandhaliw

After the PR is posted & before it merges:

• The developer has tested their solution on a cluster by using the image produced by the PR to main

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.28%. Comparing base (bc2413e) to head (6ba9b2c).
Report is 11 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3759   +/-   ##
=======================================
  Coverage   84.28%   84.28%           
=======================================
  Files        1470     1470           
  Lines       33838    33838           
  Branches     9385     9385           
=======================================
  Hits        28520    28520           
  Misses       5318     5318           

Files with missing lines	Coverage Δ
...c/concepts/connectionTypes/fields/UriFormField.tsx	100.00% <100.00%> (ø)
frontend/src/concepts/connectionTypes/utils.ts	93.23% <100.00%> (ø)
...nd/src/concepts/connectionTypes/validationUtils.ts	100.00% <ø> (ø)
...ctionTypes/manage/ConnectionTypeDataFieldModal.tsx	85.48% <100.00%> (ø)

... and 6 files with indirect coverage changes

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[ashley-o0o]

Tested on my cluster. I'm now able to use the name .dockerconfigjson for my environment variable. Update works as described in the Kubernetes guide.
/lgtm

[emilys314]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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