[MBL-873] Setup TriggerThirdPartyEvent GraphQL Mutation

[scottkicks]

📲 What

We need to update our GraphSchema so that we can use the new TriggerThirdPartyEvent mutation.

🤔 Why

This mutation allows us to send both facebook ad and google analytics data relevant to the user.
The backend will now determine which third party to use for us. For more details please see the engineering plan that I wrote for this.

🛠 How

• update graphql-schema
• update MockService
• update Service and ServiceType
• create new adapter files
• create TriggerThirdPartyInput
• create TriggerThirdPartyEvent.graphql in /mutations

The work to address replacing existing triggerCapiEventInput calls will be done in the next PR.
That will also clean up all TriggerCapiEventInput related files.

✅ Acceptance criteria

• GraphAPI has been updated with the new mutation and all tests pass
• The new TriggerThirdPartyEvent mutation is ready to be referenced in the app.

[codecov]

Codecov Report

Merging #1833 (ba2b7e6) into main (268fbed) will increase coverage by 0.00%.
The diff coverage is 88.11%.

@@           Coverage Diff            @@
##             main    #1833    +/-   ##
========================================
  Coverage   84.46%   84.47%            
========================================
  Files        1274     1278     +4     
  Lines      115157   115258   +101     
  Branches    30660    30688    +28     
========================================
+ Hits        97268    97359    +91     
- Misses      16821    16831    +10     
  Partials     1068     1068            

Impacted Files	Coverage Δ
KsApi/Service.swift	9.25% <0.00%> (-0.15%)	⬇️
KsApi/ServiceType.swift	76.06% <ø> (ø)
KsApi/MockService.swift	13.22% <14.28%> (+<0.01%)	⬆️
...dPartyEventInput+TriggerThirdPartyEventInput.swift	100.00% <100.00%> (ø)
...yEventInput+TriggerThirdPartyEventInputTests.swift	100.00% <100.00%> (ø)
...mutations/inputs/TriggerThirdPartyEventInput.swift	100.00% <100.00%> (ø)
...ions/inputs/TriggerThirdPartyEventInputTests.swift	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes

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