Upgrade terraform-provider-keycloak to v5.0.0

[VenelinMartinov]

This PR was generated via $ upgrade-provider pulumi/pulumi-keycloak --kind=provider --major.

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• Updating major version from 5.4.0 to 6.0.0.
• Upgrading terraform-provider-keycloak from 4.5.0 to 5.0.0.
  Fixes Upgrade terraform-provider-keycloak to v5.0.0 #658

[github-actions]

Does the PR have any schema changes?

Found 1 breaking change:

Resources

• 🔴 "keycloak:openid/audienceResolveProtocolMappter:AudienceResolveProtocolMappter" missing
  No new resources/functions.

Maintainer note: consult the runbook for dealing with any breaking changes.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (d8f0df4) to head (c5f6f20).
Report is 19 commits behind head on master.

Additional details and impacted files

@@          Coverage Diff           @@
##           master    #661   +/-   ##
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  Coverage    0.00%   0.00%           
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  Files           2       2           
  Lines           6       6           
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  Misses          6       6           

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