Add tag into ExecutionUpdateRequest

[ericwudayi]

TL;DR

As title

Type

• Bug Fix
• Feature
• Plugin

Are all requirements met?

• Code completed
• Smoke tested
• Unit tests added
• Code documentation added
• Any pending items have an associated Issue

Complete description

Add tag string into ExecutionUpdateRequest proto

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[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (7f62a15) 75.92% compared to head (bac051f) 78.48%.
Report is 4 commits behind head on master.

❗ Current head bac051f differs from pull request most recent head 8802bb4. Consider uploading reports for the commit 8802bb4 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #441      +/-   ##
==========================================
+ Coverage   75.92%   78.48%   +2.55%     
==========================================
  Files          18       18              
  Lines        1458     1250     -208     
==========================================
- Hits         1107      981     -126     
+ Misses        294      212      -82     
  Partials       57       57              

Flag	Coverage Δ
unittests	?

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see 18 files with indirect coverage changes

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