Fix error in dask dependency specification

[chenghlee]

Space between operator and version was causing conda to fail with Invalid spec: >=. Fixes AnacondaRecipes/dask-core-feedstock#3.

Resulting repodata.json diff:

--- a/main/noarch/reference_repodata.json
+++ b/main/noarch/repodata-patched.json
@@ -15743,7 +15743,7 @@
         "python >=3.7",
         "cloudpickle >=1.1.1",
         "fsspec >=0.6.0",
-        "partd >= 0.3.10",
+        "partd >=0.3.10",
         "pyyaml",
         "toolz >=0.8.2"
       ],
@@ -79198,7 +79198,7 @@
         "python >=3.7",
         "cloudpickle >=1.1.1",
         "fsspec >=0.6.0",
-        "partd >= 0.3.10",
+        "partd >=0.3.10",
         "pyyaml",
         "toolz >=0.8.2"
       ],

[jamesp]

Many thanks for the quick turnaround all, much appreciated