Fix 2.7 unit test requirements (microsoft#13888)

* Fix 2.7 unit test requirements * Try disabling gpu for tests * Put back old command line. '--disable-gpu' has no effect.

Author: rchiodo

requirements.in

@@ -6,7 +6,7 @@
 # IntelliSense. This is a specific commit id of our fork of the pappasam jedi-language-server
 # If you make fixes to the fork, update the commit id here. 
 # Note: This pulls in Jedi too but the pypi version. 
-git+git://github.com/vscode-python/jedi-language-server@42823a2598d4b6369e9273c5ad237a48c5d67553
+git+git://github.com/vscode-python/jedi-language-server@42823a2598d4b6369e9273c5ad237a48c5d67553; python_version >= '3.6'
 # Sort Imports
 isort==5.5.2; python_version >= '3.6'
 # DS Python daemon

requirements.txt

@@ -7,7 +7,7 @@
 click==7.1.2 # via jedi-language-server
 future==0.18.2 # via python-jsonrpc-server
 isort==5.5.2 ; python_version >= "3.6" # via -r requirements.in
-git+git://github.com/vscode-python/jedi-language-server@42823a2598d4b6369e9273c5ad237a48c5d67553 # via -r requirements.in
+git+git://github.com/vscode-python/jedi-language-server@42823a2598d4b6369e9273c5ad237a48c5d67553 ; python_version >= "3.6"  # via -r requirements.in
 jedi==0.17.2 # via jedi-language-server
 parso==0.7.0 # via jedi
 pygls==0.9.0 # via jedi-language-server