types: fix WorkDoneProgressOptions.workDoneProgress type

It seems there was a confusing with WorkDoneProgressParams and
WorkDoneProgressOptions.

[WorkDoneProgressParams](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#workDoneProgressParams)
is the type used for the token in methods and notifications, it is the
token itself, so it has type str | int. This type is correct, this was
to explain context.

[WorkDoneProgressOptions](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#workDoneProgressOptions)
is the type used for registration, it is used to indicate if work done
progress are supported, so it is a boolean. This type was wrong.

It seems as of today vscode does include workDoneProgress in requests:
 - microsoft/vscode-languageserver-node#528 (comment)
 - microsoft/vscode#105870

pygls/lsp/types/basic_structures.py

@@ -472,7 +472,7 @@ class WorkDoneProgressParams(Model):
 
 
 class WorkDoneProgressOptions(Model):
-    work_done_progress: Optional[ProgressToken]
+    work_done_progress: Optional[bool]
 
 
 class PartialResultParams(Model):

tests/lsp/test_progress.py

@@ -43,7 +43,7 @@ def __init__(self):
         @self.server.feature(
             CODE_LENS,
             CodeLensOptions(resolve_provider=False,
-                            work_done_progress=PROGRESS_TOKEN),
+                            work_done_progress=True),
         )
         def f1(params: CodeLensParams) -> Optional[List[CodeLens]]:
             self.server.lsp.progress.begin(
@@ -71,7 +71,7 @@ def test_capabilities(client_server):
 
     provider = capabilities.code_lens_provider
     assert provider
-    assert provider.work_done_progress == PROGRESS_TOKEN
+    assert provider.work_done_progress is True
 
 
 @ConfiguredLS.decorate()