fix[nginx]: Make sure we trust the GCP IPs to get the real client IP

[luislhl]

Motivation

Our Nginx config lacked a config to trust IPs from GCP and from GCP LBs

Acceptance Criteria

• Each GCP project should define their LB IPs, and the nginx.conf generated for each one should include them as trusted
• All GCP projects should include the global GCP IP ranges
• The nano_contracts logs endpoint should be made public in all projects
• Remove sections related to the nano-testnets, which don't exist anymore

TODO

• After merge, we can manually update the Nginx containers of public fullnodes, so that we don't have to wait to the next hathor-core release to deploy this

Checklist

• If you are requesting a merge into master, confirm this code is production-ready and can be included in future releases as soon as it gets merged

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.67%. Comparing base (8ea0e10) to head (071f209).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1595      +/-   ##
==========================================
- Coverage   85.69%   85.67%   -0.03%     
==========================================
  Files         441      441              
  Lines       33793    33793              
  Branches     5286     5286              
==========================================
- Hits        28959    28952       -7     
- Misses       3817     3822       +5     
- Partials     1017     1019       +2     

Flag	Coverage Δ
test-lib	85.67% <ø> (-0.03%)	⬇️

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The base branch was changed.

[github-actions]

Bencher Report

Branch	fix/nginx/add-gcp-ips
Testbed	ubuntu-22.04

🚨 1 Alert

Benchmark	Measure Units	View	Benchmark Result (Result Δ%)	Lower Boundary (Limit %)
sync-v2 (up to 20000 blocks)	Latency minutes (m)	📈 plot 🚷 threshold 🚨 alert (🔔)	1.43 m (-16.61%) Baseline: 1.71 m	1.54 m (107.93%)

Click to view all benchmark results

Benchmark	Latency	Benchmark Result minutes (m) (Result Δ%)	Lower Boundary minutes (m) (Limit %)	Upper Boundary minutes (m) (Limit %)
sync-v2 (up to 20000 blocks)	📈 view plot 🚷 view threshold 🚨 view alert (🔔)	1.43 m (-16.61%) Baseline: 1.71 m	1.54 m (107.93%)	2.06 m (69.49%)

🐰 View full continuous benchmarking report in Bencher