gopls: automated issue report (initialization)

[XenonZinc]

gopls version: v0.5.3
gopls flags:
update flags: proxy
extension version: 0.26.0
go version: 1.16.5
environment: Visual Studio Code linux
initialization error: Error: JSON RPC parse error: json: cannot unmarshal number into Go struct field RenameClientCapabilities.capabilities.textDocument.rename.prepareSupportDefaultBehavior of type bool: JSON RPC parse error
manual restart count: 0
total start count: 2

ATTENTION: PLEASE PROVIDE THE DETAILS REQUESTED BELOW.

Describe what you observed.

Please attach the stack trace from the crash.
A window with the error message should have popped up in the lower half of your screen.
Please copy the stack trace and error messages from that window and paste it in this issue.

Failed to auto-collect gopls trace: no gopls log.

OPTIONAL: If you would like to share more information, you can attach your complete gopls logs.

NOTE: THESE MAY CONTAIN SENSITIVE INFORMATION ABOUT YOUR CODEBASE.
DO NOT SHARE LOGS IF YOU ARE WORKING IN A PRIVATE REPOSITORY.

<OPTIONAL: ATTACH LOGS HERE>

[findleyr]

Hi, this is a known issue with old versions of gopls (see #1300). Please upgrade gopls to the latest version.