[tune](deps): Bump distributed in /python/requirements (#13643)

Bumps [distributed](https://github.com/dask/distributed) from 2020.12.0 to 2021.1.1.
- [Release notes](https://github.com/dask/distributed/releases)
- [Changelog](https://github.com/dask/distributed/blob/master/docs/release-procedure.md)
- [Commits](https://github.com/dask/distributed/compare/2020.12.0...2021.01.1)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

python/requirements/linux-py3.6-requirements_tune.txt

@@ -155,7 +155,7 @@ defusedxml==0.6.0
     # via nbconvert
 dill==0.3.3
     # via autogluon.core
-distributed==2021.1.0
+distributed==2021.1.1
     # via
     #   autogluon.core
     #   dask

python/requirements/linux-py3.7-requirements_tune.txt

@@ -148,7 +148,7 @@ defusedxml==0.6.0
     # via nbconvert
 dill==0.3.3
     # via autogluon.core
-distributed==2021.1.0
+distributed==2021.1.1
     # via
     #   autogluon.core
     #   dask

python/requirements/linux-py3.8-requirements_tune.txt

@@ -146,7 +146,7 @@ defusedxml==0.6.0
     # via nbconvert
 dill==0.3.3
     # via autogluon.core
-distributed==2021.1.0
+distributed==2021.1.1
     # via
     #   autogluon.core
     #   dask