Change swift.sourcekit-lsp.serverPath deprecation message to hint that it’s OK to change while developing SourceKit-LSP (#1057)

Author: ahoppen

package.json

@@ -435,7 +435,7 @@
           "swift.sourcekit-lsp.serverPath": {
             "type": "string",
             "markdownDescription": "The path of the `sourcekit-lsp` executable. The default is to look in the path where `swift` is found.",
-            "markdownDeprecationMessage": "**Deprecated**: The sourcekit-lsp executable relies on outputs from tools in your current toolchain. If your sourcekit-lsp version does not match your toolchain you may experience unexpected behaviour.",
+            "markdownDeprecationMessage": "**Deprecated**: The sourcekit-lsp executable relies on outputs from tools in your current toolchain. If your sourcekit-lsp version does not match your toolchain you may experience unexpected behaviour. Only modify this setting when developing sourcekit-lsp.",
             "order": 1
           },
           "swift.sourcekit-lsp.serverArguments": {