Suppress session_duration diffs for bookmark applications

[Justin-Holmes]

Fixes a bug where bookmark apps were always showing a diff for the session_duration field. We default that field to be '24h' when empty, however, bookmark apps don't have a session_duration so TF always showed a diff.

[github-actions]

changelog detected ✅

[jacobbednarz]

acceptance tests look good

TF_ACC=1 go test $(go list ./...) -v -run "^TestAccCloudflareAccessApplication_" -count 1 -parallel 1 -timeout 120m -parallel 1
?   	github.com/cloudflare/terraform-provider-cloudflare	[no test files]
=== RUN   TestAccCloudflareAccessApplication_BasicZone
--- PASS: TestAccCloudflareAccessApplication_BasicZone (12.33s)
=== RUN   TestAccCloudflareAccessApplication_BasicAccount
--- PASS: TestAccCloudflareAccessApplication_BasicAccount (10.52s)
=== RUN   TestAccCloudflareAccessApplication_WithCORS
--- PASS: TestAccCloudflareAccessApplication_WithCORS (10.89s)
=== RUN   TestAccCloudflareAccessApplication_WithSaas
--- PASS: TestAccCloudflareAccessApplication_WithSaas (11.44s)
=== RUN   TestAccCloudflareAccessApplication_WithAutoRedirectToIdentity
--- PASS: TestAccCloudflareAccessApplication_WithAutoRedirectToIdentity (11.78s)
=== RUN   TestAccCloudflareAccessApplication_WithEnableBindingCookie
--- PASS: TestAccCloudflareAccessApplication_WithEnableBindingCookie (10.37s)
=== RUN   TestAccCloudflareAccessApplication_WithCustomDenyFields
--- PASS: TestAccCloudflareAccessApplication_WithCustomDenyFields (9.98s)
=== RUN   TestAccCloudflareAccessApplication_WithADefinedIdps
--- PASS: TestAccCloudflareAccessApplication_WithADefinedIdps (12.04s)
=== RUN   TestAccCloudflareAccessApplication_WithHttpOnlyCookieAttribute
--- PASS: TestAccCloudflareAccessApplication_WithHttpOnlyCookieAttribute (10.83s)
=== RUN   TestAccCloudflareAccessApplication_WithHTTPOnlyCookieAttributeSetToFalse
--- PASS: TestAccCloudflareAccessApplication_WithHTTPOnlyCookieAttributeSetToFalse (10.29s)
=== RUN   TestAccCloudflareAccessApplication_WithSameSiteCookieAttribute
--- PASS: TestAccCloudflareAccessApplication_WithSameSiteCookieAttribute (10.96s)
=== RUN   TestAccCloudflareAccessApplication_WithLogoURL
--- PASS: TestAccCloudflareAccessApplication_WithLogoURL (10.27s)
=== RUN   TestAccCloudflareAccessApplication_WithSkipInterstitial
--- PASS: TestAccCloudflareAccessApplication_WithSkipInterstitial (10.94s)
=== RUN   TestAccCloudflareAccessApplication_WithAppLauncherVisible
--- PASS: TestAccCloudflareAccessApplication_WithAppLauncherVisible (10.72s)
PASS
ok  	github.com/cloudflare/terraform-provider-cloudflare/internal/provider	153.875s

[github-actions]

This functionality has been released in v3.30.0 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!