Update automation test cases (#5991)

Longer the wait time to pass the nightly testing

Signed-off-by: Wenkai Yin <yinw@vmware.com>

tests/resources/Harbor-Pages/Project.robot

@@ -84,6 +84,7 @@ Make Project Private
     Go Into Project  ${project name}    
     Sleep  1
     Click Element  xpath=//project-detail//a[contains(.,'Configuration')]
+    Sleep  1
     Checkbox Should Be Selected  xpath=//input[@name='public']
     Click Element  //clr-checkbox[@name='public']//label
     Click Element  //button[contains(.,'SAVE')]

tests/resources/Harbor-Pages/Vulnerability.robot

@@ -45,9 +45,8 @@ Scan Repo
     #select one tag
     Click Element  //clr-dg-row[contains(.,"${tagname}")]//label
     Click Element  //button[contains(.,'Scan')]
-    Sleep  20
-    Run Keyword If  '${status}' == 'Succeed'  Wait Until Element Is Visible  //hbr-vulnerability-bar//hbr-vulnerability-summary-chart
-    Run Keyword If  '${status}' == 'Fail'  Wait Until Element Is Visible  //hbr-vulnerability-bar//a
+    Run Keyword If  '${status}' == 'Succeed'  Wait Until Element Is Visible  //hbr-vulnerability-bar//hbr-vulnerability-summary-chart  300
+    Run Keyword If  '${status}' == 'Fail'  Wait Until Element Is Visible  //hbr-vulnerability-bar//a  300
 
 
 Summary Chart Should Display

tests/robot-cases/Group1-Nightly/Common.robot

@@ -68,6 +68,7 @@ Test Case - Read Only Mode
     Cannot Push image  ${ip}  ${HARBOR_ADMIN}  ${HARBOR_PASSWORD}  project${d}  busybox:latest
 
     Disable Read Only
+    Sleep  5
     Push image  ${ip}  ${HARBOR_ADMIN}  ${HARBOR_PASSWORD}  project${d}  busybox:latest
     Close Browser
 
@@ -265,6 +266,8 @@ Test Case - User View Logs
     Go Into Project  project${d}
     Delete Repo  project${d}
 
+    Sleep  1
+
     Go To Project Log
     Advanced Search Should Display