Add is-required label to required fields

[britneywwc]

Done

• Add "is-required" class to required fields for /data/mongodb#get-in-touch and /data/kafka#get-in-touch contact forms
• The Jira issue reports a "Not Provided" payload for the required fields, this could not be replicated locally so this PR should explicitly tell users to fill up the forms with the required labels

QA

• Go to /data/mongodb#get-in-touch and /data/kafka#get-in-touch
• See that the contact fields have required * on the labels

Issue / Card

Fixes WD-14682

Screenshots

[if relevant, include a screenshot]

[webteam-app]

Demo

Jenkins

demos.haus

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.86%. Comparing base (6ea4949) to head (9a6e5ec).
Report is 172 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1365      +/-   ##
==========================================
- Coverage   72.48%   71.86%   -0.62%     
==========================================
  Files          13       14       +1     
  Lines        1072     1102      +30     
==========================================
+ Hits          777      792      +15     
- Misses        295      310      +15     

Flag	Coverage Δ
python	71.86% <ø> (-0.62%)	⬇️

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[petesfrench]

For /data/kafka#get-in-touch the 'phone number' field isn't actually required in Marketo https://na-sjg.marketodesigner.com/m#FOP5522. I don't know if this intentional or not

[petesfrench]

and /data/mongodb#get-in-touch for 'job title' and 'company name' are not required https://na-sjg.marketodesigner.com/m#FOP4903
I am not sure if we should follow Marketo or the copydoc (which I haven't found)

[petesfrench]

LGTM, with some notes. You can ignore if you want, I don't think it makes too much of a difference. Otherwise you can reach out to the page owners or Lazlo