Add logpush_job migrations tests

[ssicard]

This adds migration tests for the logpush_job resource. Below is a more granular listing of all changes:

• adds zone level resources to logpush_job sweep
• adds migration tests for both account-level logpush jobs and zone-level

Note: resource.go was updated for this resource to account for less options for kind (no instant-logs supported)

Acceptance test run results

• I have run acceptance tests for my changes and included the results below

=== RUN   TestMigrateCloudflareLogpushJob_Migration_Basic_MultiVersion
=== RUN   TestMigrateCloudflareLogpushJob_Migration_Basic_MultiVersion/from_v4_52_1
--- PASS: TestMigrateCloudflareLogpushJob_Migration_Basic_MultiVersion (18.01s)
    --- PASS: TestMigrateCloudflareLogpushJob_Migration_Basic_MultiVersion/from_v4_52_1 (18.01s)
=== RUN   TestMigrateCloudflareLogpushJob_Migration_OutputOptions
--- PASS: TestMigrateCloudflareLogpushJob_Migration_OutputOptions (15.43s)
=== RUN   TestMigrateCloudflareLogpushJob_Migration_InstantLogs
--- PASS: TestMigrateCloudflareLogpushJob_Migration_InstantLogs (16.20s)
PASS
ok      github.com/cloudflare/terraform-provider-cloudflare/internal/services/logpush_job       51.040s

Additional context & links

[ssicard]

Updates are being made in resource.go to account for an update in kind in logpush_job resource. instant-logs was a valid kind option in v4, but is not valid in v5. The API was adding instant-logs back to the state even though it was not valid, so we explicitly ignore that as a value.