Update support for crowdstrike_s2s posture rule

[jlu-cloudflare]

Adds support for new fields for the Crowdstrike S2S posture rule: last_seen and state.

[github-actions]

changelog detected ✅

[jacobbednarz]

acceptance tests all passing

TF_ACC=1 go test ./internal/sdkv2provider -v -run "^TestAccCloudflareDevicePostureRule_" -count 1 -timeout 120m -parallel 1
=== RUN   TestAccCloudflareDevicePostureRule_SerialNumber
--- PASS: TestAccCloudflareDevicePostureRule_SerialNumber (10.45s)
=== RUN   TestAccCloudflareDevicePostureRule_OsVersion
--- PASS: TestAccCloudflareDevicePostureRule_OsVersion (12.89s)
=== RUN   TestAccCloudflareDevicePostureRule_LinuxOsDistro
--- PASS: TestAccCloudflareDevicePostureRule_LinuxOsDistro (8.55s)
=== RUN   TestAccCloudflareDevicePostureRule_DomainJoined
--- PASS: TestAccCloudflareDevicePostureRule_DomainJoined (10.77s)
=== RUN   TestAccCloudflareDevicePostureRule_Firewall
--- PASS: TestAccCloudflareDevicePostureRule_Firewall (9.69s)
=== RUN   TestAccCloudflareDevicePostureRule_DiskEncryption_RequireAll
--- PASS: TestAccCloudflareDevicePostureRule_DiskEncryption_RequireAll (9.08s)
=== RUN   TestAccCloudflareDevicePostureRule_DiskEncryption_CheckDisks
--- PASS: TestAccCloudflareDevicePostureRule_DiskEncryption_CheckDisks (9.25s)
PASS
ok  	github.com/cloudflare/terraform-provider-cloudflare/internal/sdkv2provider	71.704s

[github-actions]

This functionality has been released in v4.28.0 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!