chore: make rx support a little nicer and upgrade grpc

[aaron-steinfeld]

Description

This makes rx support a little nicer - removing the requirement to cast and automatically logging errors. Also updated GRPC version to 1.36.0

[codecov]

Codecov Report

Merging #11 (3e943d9) into main (65a2fb0) will increase coverage by 0.41%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##               main      #11      +/-   ##
============================================
+ Coverage     68.42%   68.83%   +0.41%     
- Complexity       51       52       +1     
============================================
  Files            13       13              
  Lines           152      154       +2     
  Branches          9        9              
============================================
+ Hits            104      106       +2     
  Misses           42       42              
  Partials          6        6              

Flag	Coverage Δ	Complexity Δ
unit	68.83% <100.00%> (+0.41%)	0.00 <3.00> (ø)

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Impacted Files	Coverage Δ	Complexity Δ
...rpcutils/server/rx/ServerCallStreamRxObserver.java	100.00% <100.00%> (ø)	7.00 <3.00> (+1.00)

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[github-actions]

Unit Test Results

  8 files  ±0    8 suites  ±0   7s ⏱️ -1s
38 tests ±0  38 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 711ea65. ± Comparison against base commit 65a2fb0.