Merge branch 'dev_v1.2.0' into release_v1.2.0

merge

themis-exam/src/main/resources/application-test_disable.properties

@@ -214,7 +214,7 @@ no.auth.urls=/webjars/**,/druid/**,/swagger-ui.html,/doc.html,/swagger-resources
 common.system.urls=/api/oe/student/logout,/api/oe/exam/file/upload,/api/mobile/file/upload
 
 #update
-sys.config.qrExpireTime=30
+sys.config.qrExpireTime=120
 tencentyun.sdk.callbackTime=1h
 
 tencentyun.sdk.trtcQueryUrl=trtc.tencentcloudapi.com