The process will not be closed after testing a single file, and a large number of debugging processes will accumulate, causing an error to be reported when running a new test.

[tantian1498]

Describe the bug
The process will not be closed after testing a single file, and a large number of debugging processes will accumulate, causing an error to be reported when running a new test.

To Reproduce
Steps to reproduce the behavior:

1. Open file with contents '....'
2. See code analysis errors '....'

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Versions:

• OS: [e.g. Windows 10]
• Robot Framework Version: [e.g. 3.2]
• Robot Framework Language Server Version: [e.g. 0.2.3]
• Client Version: [e.g.: VSCode 1.46 or PyCharm 2020.1.2]

Logs
Add the logs obtained when reproducing the issue.
See: https://github.com/robocorp/robotframework-lsp/blob/master/robotframework-ls/docs/reporting_issues.md for details on how to collect the logs.