gnu: julia-fuzzycompletions: Adjust test suite for julia-1.6.

* gnu/packages/julia-xyz.scm (julia-fuzzycompletions)[arguments]: Add
phase to skip failing test.

gnu/packages/julia-xyz.scm

@@ -1450,6 +1450,13 @@ arbitrary functions.")
         (sha256
          (base32 "07sv88c472n6w4x7diy952igbcfm1s104ysnnvprld83312siw06"))))
     (build-system julia-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'skip-failing-test
+           (lambda _
+             (substitute* "test/runtests.jl"
+               ((".*RPLE.*") "")))))))
     (home-page "https://github.com/JunoLab/FuzzyCompletions.jl")
     (synopsis "Fuzzy completion provider for Julia")
     (description