Add support for body_scanning to cloudflare_teams_account

[webbgeorge]

Resolves #2374

The teams account configuration APIs and the Go SDK now support Enhanced File Detection (body_scanning), see links below. This PR adds support for this parameter to this provider.

Enhanced file detection: https://developers.cloudflare.com/cloudflare-one/insights/logs/gateway-logs/#enhanced-file-detection
API docs: https://developers.cloudflare.com/api/operations/zero-trust-accounts-get-zero-trust-account-configuration
SDK: https://github.com/cloudflare/cloudflare-go/blob/master/teams_accounts.go#L47 (released in v0.80.0)

In addition to the tests in the this repository, I have tested this change using dev_overrides on a local project with several scenarios, and it behaves as expected.

[github-actions]

changelog detected ✅

[jacobbednarz]

lgtm, thanks!

TF_ACC=1 go test ./internal/sdkv2provider -v -run "^(TestAccCloudflareAccessPolicy_|TestAccCloudflareTeamsAccounts_)" -count 1 -timeout 120m -parallel 1
=== RUN   TestAccCloudflareAccessPolicy_ServiceToken
--- PASS: TestAccCloudflareAccessPolicy_ServiceToken (13.62s)
=== RUN   TestAccCloudflareAccessPolicy_AnyServiceToken
--- PASS: TestAccCloudflareAccessPolicy_AnyServiceToken (12.52s)
=== RUN   TestAccCloudflareAccessPolicy_WithZoneID
--- PASS: TestAccCloudflareAccessPolicy_WithZoneID (20.98s)
=== RUN   TestAccCloudflareAccessPolicy_Group
--- PASS: TestAccCloudflareAccessPolicy_Group (12.97s)
=== RUN   TestAccCloudflareAccessPolicy_MTLS
--- PASS: TestAccCloudflareAccessPolicy_MTLS (12.76s)
=== RUN   TestAccCloudflareAccessPolicy_CommonName
--- PASS: TestAccCloudflareAccessPolicy_CommonName (12.31s)
=== RUN   TestAccCloudflareAccessPolicy_EmailDomain
--- PASS: TestAccCloudflareAccessPolicy_EmailDomain (12.48s)
=== RUN   TestAccCloudflareAccessPolicy_Emails
--- PASS: TestAccCloudflareAccessPolicy_Emails (12.79s)
=== RUN   TestAccCloudflareAccessPolicy_Everyone
--- PASS: TestAccCloudflareAccessPolicy_Everyone (12.26s)
=== RUN   TestAccCloudflareAccessPolicy_IPs
--- PASS: TestAccCloudflareAccessPolicy_IPs (15.19s)
=== RUN   TestAccCloudflareAccessPolicy_AuthMethod
--- PASS: TestAccCloudflareAccessPolicy_AuthMethod (12.25s)
=== RUN   TestAccCloudflareAccessPolicy_Geo
--- PASS: TestAccCloudflareAccessPolicy_Geo (12.15s)
=== RUN   TestAccCloudflareAccessPolicy_Okta
--- PASS: TestAccCloudflareAccessPolicy_Okta (11.94s)
=== RUN   TestAccCloudflareAccessPolicy_PurposeJustification
--- PASS: TestAccCloudflareAccessPolicy_PurposeJustification (12.82s)
=== RUN   TestAccCloudflareAccessPolicy_ApprovalGroup
--- PASS: TestAccCloudflareAccessPolicy_ApprovalGroup (13.58s)
=== RUN   TestAccCloudflareAccessPolicy_ExternalEvaluation
--- PASS: TestAccCloudflareAccessPolicy_ExternalEvaluation (12.11s)
=== RUN   TestAccCloudflareAccessPolicy_IsolationRequired
--- PASS: TestAccCloudflareAccessPolicy_IsolationRequired (17.46s)
=== RUN   TestAccCloudflareTeamsAccounts_ConfigurationBasic
--- PASS: TestAccCloudflareTeamsAccounts_ConfigurationBasic (12.29s)
PASS
ok  	github.com/cloudflare/terraform-provider-cloudflare/internal/sdkv2provider	243.248s

[github-actions]

This functionality has been released in v4.18.0 of the Terraform Cloudflare Provider.

Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!