[ALS-5514] Change POST to GET in OktaAuthenticationService

This update modifies the HTTP method for the authenticate method in OktaAuthenticationService from POST to GET. This change aligns with our data retrieval patterns, and adapts it to receive parameters from the URL instead of the request body. The import statement also refactored to use wildcard import for javax.ws.rs package.

pic-sure-auth-services/src/main/java/edu/harvard/hms/dbmi/avillach/auth/rest/OktaAuthenticationService.java

@@ -10,10 +10,7 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.POST;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
+import javax.ws.rs.*;
 import javax.ws.rs.core.*;
 import java.util.Map;
 
@@ -27,9 +24,9 @@ public class OktaAuthenticationService {
     private final String oktaDomain = System.getenv("okta_client_origin");
     private final String apiToken = System.getenv("okta_client_api_token");
 
-    @POST
+    @GET
     @Path("/authentication")
-    public Response authenticate(@Context HttpHeaders httpHeaders, @Context UriInfo uriInfo, Map<String, String> authRequest) {
+    public Response authenticate(@Context HttpHeaders httpHeaders, @Context UriInfo uriInfo) {
         Client client = Clients.builder()
                 .setOrgUrl(oktaDomain)
                 .setClientCredentials(new TokenClientCredentials(apiToken))