systemvm: fix failed to get script version when patch system vm or router

[weizhouapache]

Description

This PR fixes a regression of #9900

prior to this PR

2025-06-05 12:28:53,992 DEBUG [cloud.agent.Agent] (AgentRequest-Handler-1:[]) (logid:) Processing command: com.cloud.agent.api.PatchSystemVmCommand
2025-06-05 12:29:25,959 DEBUG [resource.wrapper.LibvirtPatchSystemVmCommandWrapper] (AgentRequest-Handler-1:[]) (logid:) Patch result of systemVM s-368-VM: /root
2025-06-05 12:29:25,961 WARN  [resource.wrapper.LibvirtPatchSystemVmCommandWrapper] (AgentRequest-Handler-1:[]) (logid:) Failed to get the latest script version
2025-06-05 12:29:25,962 DEBUG [cloud.agent.Agent] (AgentRequest-Handler-1:[]) (logid:) Seq 2-7450361158554357406:  { Ans: , MgmtId: 32986204472275, via: 2, Ver: v1, Flags: 10, [{"com.cloud.agent.api.PatchSystemVmAnswer":{"templateVersion":"Cloudstack Release 4.20.1 Wed May 14 05:22:13 PM UTC 2025","scriptsVersion":"5ebc6ded1a3880732363c1cdbbd54cfb

with this PR

2025-06-05 12:42:46,219 DEBUG [cloud.agent.Agent] (AgentRequest-Handler-2:[]) (logid:) Request:Seq 2-7450361158554357463:  { Cmd , MgmtId: 32986204472275, via: 2, Ver: v1, Flags: 100011, [{"com.cloud.agent.api.PatchSystemVmCommand":{"forced":"true","accessDetails":{"router.ip":"169.254.151.188","router.name":"s-368-VM"},"wait":"0","bypassHostMaintenance":"false"}}] }
2025-06-05 12:42:46,220 DEBUG [cloud.agent.Agent] (AgentRequest-Handler-2:[]) (logid:) Processing command: com.cloud.agent.api.PatchSystemVmCommand
2025-06-05 12:43:18,083 DEBUG [resource.wrapper.LibvirtPatchSystemVmCommandWrapper] (AgentRequest-Handler-2:[]) (logid:) Patch result of systemVM s-368-VM: /root
2025-06-05 12:43:18,083 DEBUG [cloud.agent.Agent] (AgentRequest-Handler-2:[]) (logid:) Seq 2-7450361158554357463:  { Ans: , MgmtId: 32986204472275, via: 2, Ver: v1, Flags: 10, [{"com.cloud.agent.api.PatchSystemVmAnswer":{"templateVersion":"Cloudstack Release 4.20.1 Wed May 14 05:22:13 PM UTC 2025","scriptsVersion":"5ebc6ded1a3880732363c1cdbbd54cfb","result":"true","details":"Successfully patched systemVM s-368-VM ","wait":"0","bypassHostMaintenance":"false"}}] }

Types of changes

• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] Enhancement (improves an existing feature and functionality)
• [ ] Cleanup (Code refactoring and cleanup, that may add test cases)
• [ ] build/CI
• [ ] test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• [ ] Major
• [ ] Minor

Bug Severity

• [ ] BLOCKER
• [ ] Critical
• [ ] Major
• [x] Minor
• [ ] Trivial

Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?