Updates to align with AccessAPI changes on flow-go master

[peterargue]

This PR pulls in changes from 3 other PRs:

• [Access] Get protocol snapshot by block id and block height #501
• [Access] Get Block endpoint is missing the system collection #514

This aligns the AccessAPI with the latest changes on master

Note: this also updates the go version since the flow-go repo now uses features only available in v1.20

[codecov-commenter]

Codecov Report

Attention: 18 lines in your changes are missing coverage. Please review.

Comparison is base (f1e6dd6) 50.75% compared to head (02670e7) 50.51%.

Files	Patch %	Lines
adapters/access.go	0.00%	8 Missing ⚠️
adapters/sdk.go	0.00%	8 Missing ⚠️
server/access/streamBackend.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #518      +/-   ##
==========================================
- Coverage   50.75%   50.51%   -0.24%     
==========================================
  Files          30       30              
  Lines        3933     3951      +18     
==========================================
  Hits         1996     1996              
- Misses       1784     1802      +18     
  Partials      153      153              

Flag	Coverage Δ
unittests	50.51% <0.00%> (-0.24%)	⬇️

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