update metric wording to include API

[andrecolinone]

Resolves APPEALS-46700

Description

When Reader make an API call to eFolder to retrieve a document and document not found in the s3 cache, the eFolder will return the document directly from VBMS instead of first trying to store to s3. There is already another process that will store the document to s3. Update metric message text

Acceptance Criteria

• [ ] Code compiles correctly

Testing Plan

1. Go to ...

• [ ] For higher-risk changes: Deploy the custom branch to UAT to test

User Facing Changes

• [ ] Screenshots of UI changes added to PR & Original Issue

  BEFORE	AFTER

Code Documentation Updates

• [ ] Add or update code comments at the top of the class, module, and/or component.

Database Changes

Only for Schema Changes

• [ ] Timestamps (created_at, updated_at) for new tables
• [ ] Column comments updated
• [ ] Verify that migrate:rollback works as desired (change supported functions)
• [ ] Query profiling performed (eyeball Rails log, check bullet and fasterer output)
• [ ] Appropriate indexes added (especially for foreign keys, polymorphic columns, unique constraints, and Rails scopes)
• [ ] Add your indexes safely (see Caseflow::Migrations
• [ ] DB schema docs updated with make docs (after running make migrate)
• [ ] #appeals-schema notified with summary and link to this PR
• [ ] Any non-obvious semantics or logic useful for interpreting database data is documented at Caseflow Data Model and Dictionary

Integrations: Adding endpoints for external APIs

• [ ] Check that Caseflow's external API code for the endpoint matches the code in the relevant integration repo
  • [ ] Request: Service name, method name, input field names
  • [ ] Response: Check expected data structure
• [ ] Update Fakes
• [ ] Integrations impacting functionality are tested in Caseflow UAT