chore: release 1.19.6

[release-please]

🤖 I have created a release *beep* *boop*

1.19.6 (2021-10-25)

Bug Fixes

• setting 64bit fields from strings supported (#267) (ea7b911)

---

This PR was generated with Release Please. See documentation.

[codecov]

Codecov Report

Merging #268 (0f02f4c) into master (6a43682) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #268   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           20        22    +2     
  Lines          862       961   +99     
  Branches       149       170   +21     
=========================================
+ Hits           862       961   +99     

Impacted Files	Coverage Δ
proto/modules.py	100.00% <ø> (ø)
proto/enums.py	100.00% <100.00%> (ø)
proto/fields.py	100.00% <100.00%> (ø)
proto/marshal/collections/repeated.py	100.00% <100.00%> (ø)
proto/marshal/marshal.py	100.00% <100.00%> (ø)
proto/marshal/rules/bytes.py	100.00% <100.00%> (ø)
proto/marshal/rules/message.py	100.00% <100.00%> (ø)
proto/marshal/rules/stringy_numbers.py	100.00% <100.00%> (ø)
proto/message.py	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update ea7b911...0f02f4c. Read the comment docs.

[yoshi-automation]

Release is at https://github.com/googleapis/proto-plus-python/releases/tag/v1.19.6