gnu: python-language-server: Update to 0.28.3-1.c3cab77.

* gnu/packages/python-xyz.scm (python-language-server): Update to 0.28.3-1.c3cab77.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>

gnu/packages/python-xyz.scm

@@ -2984,17 +2984,23 @@ Language (TOML) configuration files.")
 Server (PLS).")
     (license license:expat)))
 
+;; XXX: We must use a non-release version since the latest release version
+;; requires python-jedi version < 0.15.
 (define-public python-language-server
+  (let ((commit "c3cab77a85b1de4af1aec1bafea6a7320d6baec5")
+        (revision "1"))
     (package
       (name "python-language-server")
-    (version "0.28.1")
+      (version (git-version "0.28.3" revision commit))
       (source
        (origin
-       (method url-fetch)
+         (method git-fetch)
-       (uri (pypi-uri "python-language-server" version))
+         (uri (git-reference
+               (url "https://github.com/palantir/python-language-server.git")
+               (commit commit)))
          (sha256
           (base32
-         "1qbiij208l6g1l5hzihx8badhmqkxdk0spn7gm7564yg54zdp2g2"))))
+           "1q0xdwgln09sh58j0ryygj92hfgdhwcs57zjvqihya23jr5v0bz4"))))
       (build-system python-build-system)
       (propagated-inputs
        `(("python-pluggy" ,python-pluggy)
@@ -3015,7 +3021,7 @@ Server (PLS).")
 language specification for the Language Server Protocol (LSP).  This tool is
 used in text editing environments to provide a complete and integrated
 feature-set for programming Python effectively.")
-    (license license:expat)))
+      (license license:expat))))
 
 (define-public python-black
   (package