Replace URL with String as the key

[iamyulong]

The equals() implementation of URL resolves the hostname into an IP address. When multiple URLs are mapped into the same IP (especially with 1.1.1.1 DNS server), it will cause the following exception:

java.lang.IllegalArgumentException: Multiple entries with same key: https://ifconfig.co/ip=Success(x.x.x.x) and https://www.trackip.net/ip=Success(x.x.x.x)
        at com.google.common.collect.ImmutableMap.conflictException(ImmutableMap.java:377)
        at com.google.common.collect.ImmutableMap.checkNoConflict(ImmutableMap.java:371)
        at com.google.common.collect.RegularImmutableMap.checkNoConflictInKeyBucket(RegularImmutableMap.java:241)
        at com.google.common.collect.RegularImmutableMap.fromEntryArrayCheckingBucketOverflow(RegularImmutableMap.java:132)
        at com.google.common.collect.RegularImmutableMap.fromEntryArray(RegularImmutableMap.java:94)
        at com.google.common.collect.ImmutableMap$Builder.build(ImmutableMap.java:573)
        at com.google.common.collect.ImmutableMap$Builder.buildOrThrow(ImmutableMap.java:601)
        at com.google.common.collect.ImmutableMap$Builder.build(ImmutableMap.java:588)
        at com.radixdlt.p2p.hostip.NetworkQueryHostIp.get(NetworkQueryHostIp.java:191)

[github-actions]

Phylum Report Link

[github-actions]

Docker tags
docker.io/radixdlt/private-babylon-node:pr-1038
docker.io/radixdlt/private-babylon-node:5a5951d6db
docker.io/radixdlt/private-babylon-node:sha-5a5951d

[dhedey]

Approving, subject to fixing NetworkQueryHostIpTest.java so the tests compile and run

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 42.4%. Comparing base (3eb74c0) to head (02ea27b).

Additional details and impacted files

@@                 Coverage Diff                  @@
##             release/cuttlefish   #1038   +/-   ##
====================================================
  Coverage                  42.4%   42.4%           
- Complexity                 4624    4628    +4     
====================================================
  Files                      1782    1782           
  Lines                     55167   55159    -8     
  Branches                   1524    1524           
====================================================
+ Hits                      23406   23407    +1     
+ Misses                    31282   31274    -8     
+ Partials                    479     478    -1     

Flag	Coverage Δ
rust	42.4% <100.0%> (+<0.1%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...va/com/radixdlt/p2p/hostip/NetworkQueryHostIp.java	92.5% <100.0%> (+11.2%)	⬆️

... and 2 files with indirect coverage changes

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud