Update python

Changes:

- https://github.com/docker-library/python/commit/82b5caa: Update to 3.10.0a3, pip 20.3.1

library/python

@@ -4,33 +4,33 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/python.git
 
-Tags: 3.10.0a2-buster, 3.10-rc-buster, rc-buster
-SharedTags: 3.10.0a2, 3.10-rc, rc
+Tags: 3.10.0a3-buster, 3.10-rc-buster, rc-buster
+SharedTags: 3.10.0a3, 3.10-rc, rc
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: dc9b64baf4c01bad4ddca590418dcfdb46a13ac2
+GitCommit: 82b5caa6335007925dc9bfeb7f374d074b186703
 Directory: 3.10-rc/buster
 
-Tags: 3.10.0a2-slim-buster, 3.10-rc-slim-buster, rc-slim-buster, 3.10.0a2-slim, 3.10-rc-slim, rc-slim
+Tags: 3.10.0a3-slim-buster, 3.10-rc-slim-buster, rc-slim-buster, 3.10.0a3-slim, 3.10-rc-slim, rc-slim
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: dc9b64baf4c01bad4ddca590418dcfdb46a13ac2
+GitCommit: 82b5caa6335007925dc9bfeb7f374d074b186703
 Directory: 3.10-rc/buster/slim
 
-Tags: 3.10.0a2-alpine3.12, 3.10-rc-alpine3.12, rc-alpine3.12, 3.10.0a2-alpine, 3.10-rc-alpine, rc-alpine
+Tags: 3.10.0a3-alpine3.12, 3.10-rc-alpine3.12, rc-alpine3.12, 3.10.0a3-alpine, 3.10-rc-alpine, rc-alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: dc9b64baf4c01bad4ddca590418dcfdb46a13ac2
+GitCommit: 82b5caa6335007925dc9bfeb7f374d074b186703
 Directory: 3.10-rc/alpine3.12
 
-Tags: 3.10.0a2-windowsservercore-1809, 3.10-rc-windowsservercore-1809, rc-windowsservercore-1809
-SharedTags: 3.10.0a2-windowsservercore, 3.10-rc-windowsservercore, rc-windowsservercore, 3.10.0a2, 3.10-rc, rc
+Tags: 3.10.0a3-windowsservercore-1809, 3.10-rc-windowsservercore-1809, rc-windowsservercore-1809
+SharedTags: 3.10.0a3-windowsservercore, 3.10-rc-windowsservercore, rc-windowsservercore, 3.10.0a3, 3.10-rc, rc
 Architectures: windows-amd64
-GitCommit: dc9b64baf4c01bad4ddca590418dcfdb46a13ac2
+GitCommit: 82b5caa6335007925dc9bfeb7f374d074b186703
 Directory: 3.10-rc/windows/windowsservercore-1809
 Constraints: windowsservercore-1809
 
-Tags: 3.10.0a2-windowsservercore-ltsc2016, 3.10-rc-windowsservercore-ltsc2016, rc-windowsservercore-ltsc2016
-SharedTags: 3.10.0a2-windowsservercore, 3.10-rc-windowsservercore, rc-windowsservercore, 3.10.0a2, 3.10-rc, rc
+Tags: 3.10.0a3-windowsservercore-ltsc2016, 3.10-rc-windowsservercore-ltsc2016, rc-windowsservercore-ltsc2016
+SharedTags: 3.10.0a3-windowsservercore, 3.10-rc-windowsservercore, rc-windowsservercore, 3.10.0a3, 3.10-rc, rc
 Architectures: windows-amd64
-GitCommit: dc9b64baf4c01bad4ddca590418dcfdb46a13ac2
+GitCommit: 82b5caa6335007925dc9bfeb7f374d074b186703
 Directory: 3.10-rc/windows/windowsservercore-ltsc2016
 Constraints: windowsservercore-ltsc2016