gnu: python-bitarray: Update to 2.6.1.

* gnu/packages/python-xyz.scm (python-bitarray): Update to 2.6.1.
[arguments]: Override check phase.

gnu/packages/python-xyz.scm

@@ -1675,14 +1675,24 @@ and a list of words that are easier to remember for humans (the
 (define-public python-bitarray
   (package
     (name "python-bitarray")
-    (version "1.4.0")
+    (version "2.6.1")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "bitarray" version))
               (sha256
                (base32
-                "177fj6wbw5jln54wpp6plcqy2329wjkwqwvgz7022rrg3xfrq49g"))))
+                "0c4jli872nzix81n1xirnrghlq2fdsxb570d9rnfvxi1694sah44"))))
     (build-system python-build-system)
+    (arguments
+     (list #:phases
+           #~(modify-phases %standard-phases
+               (replace 'check
+                 (lambda* (#:key tests? #:allow-other-keys)
+                   (when tests?
+                     ;; Step out of the source directory to avoid interference.
+                     (with-directory-excursion "/tmp"
+                       (invoke "python" "-c"
+                               "import bitarray; bitarray.test()"))))))))
     (home-page "https://github.com/ilanschnell/bitarray")
     (synopsis "Efficient arrays of booleans")
     (description "This package provides an object type which efficiently