Bump sphinxcontrib-programoutput from 0.11 to 0.16 (RasaHQ#5939)

Bumps [sphinxcontrib-programoutput](https://github.com/NextThought/sphinxcontrib-programoutput) from 0.11 to 0.16.
- [Release notes](https://github.com/NextThought/sphinxcontrib-programoutput/releases)
- [Changelog](https://github.com/NextThought/sphinxcontrib-programoutput/blob/master/CHANGES.rst)
- [Commits](OpenNTI/sphinxcontrib-programoutput@0.11...0.16)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

poetry.lock

@@ -148,7 +148,7 @@ towncrier = "^19.2.0"
 toml = "^0.10.0"
 sphinx = "^3.0.0"
 sphinx-autobuild = "~0.7.1"
-sphinxcontrib-programoutput = "==0.11"
+sphinxcontrib-programoutput = "==0.16"
 pygments = "^2.6.1"
 sphinxcontrib-httpdomain = "==1.7.0"
 sphinxcontrib-websupport = "^1.1.0"