Remove PostgreSQL (#526)

* Remove postgresql service

* Update index

Author: vicentepinto98

docs/data-sources/postgresql_credential.md

@@ -23,7 +23,6 @@ require (
 	github.com/stackitcloud/stackit-sdk-go/services/observability v0.1.0
 	github.com/stackitcloud/stackit-sdk-go/services/opensearch v0.18.0
 	github.com/stackitcloud/stackit-sdk-go/services/postgresflex v0.15.0
-	github.com/stackitcloud/stackit-sdk-go/services/postgresql v0.12.1
 	github.com/stackitcloud/stackit-sdk-go/services/rabbitmq v0.19.0
 	github.com/stackitcloud/stackit-sdk-go/services/redis v0.19.0
 	github.com/stackitcloud/stackit-sdk-go/services/resourcemanager v0.9.0

docs/data-sources/postgresql_instance.md

@@ -173,8 +173,6 @@ github.com/stackitcloud/stackit-sdk-go/services/opensearch v0.18.0 h1:pzHA3sxaAs
 github.com/stackitcloud/stackit-sdk-go/services/opensearch v0.18.0/go.mod h1:ZecMIf9oYj2DGZqWh93l97WdVaRdLl+tW5Fq3YKGwBM=
 github.com/stackitcloud/stackit-sdk-go/services/postgresflex v0.15.0 h1:05wQYhO37Z4y8xAD+4OTYz6rYu6eJEmwMfCG4tjETEc=
 github.com/stackitcloud/stackit-sdk-go/services/postgresflex v0.15.0/go.mod h1:SdrqGLCkilL6wl1+jcxmLtks2IocgIg+bsyeyYUIzR4=
-github.com/stackitcloud/stackit-sdk-go/services/postgresql v0.12.1 h1:u2jNFPPLM2TlpM1qUu1UuG9XKx/EYPjwg2nJqAK1HUY=
-github.com/stackitcloud/stackit-sdk-go/services/postgresql v0.12.1/go.mod h1:rTbdB/rl+e9o9sJNrT3yMIaSNVBGqR5G2Vh4opKrEwo=
 github.com/stackitcloud/stackit-sdk-go/services/rabbitmq v0.19.0 h1:qZ62GSQKw73JrS7a9WeGILMki26KNyqrMOmD8r41u/A=
 github.com/stackitcloud/stackit-sdk-go/services/rabbitmq v0.19.0/go.mod h1:eSgnPBknTJh7t+jVKN+xzeAh+Cg1USOlH3QCyfvG20g=
 github.com/stackitcloud/stackit-sdk-go/services/redis v0.19.0 h1:/s9GUIpwZTN6I7J4nKmBBmxc6lPJYpCHHxYsC+gDsZs=

docs/resources/postgresql_credential.md

@@ -496,7 +496,7 @@ func (r *instanceResource) ImportState(ctx context.Context, req resource.ImportS
 
 	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), idParts[0])...)
 	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("instance_id"), idParts[1])...)
-	tflog.Info(ctx, "Postgresql instance state imported")
+	tflog.Info(ctx, "Postgresql Flex instance state imported")
 }
 
 func mapFields(ctx context.Context, resp *postgresflex.InstanceResponse, model *Model, flavor *flavorModel, storage *storageModel) error {