Display server-url

[KimberleyChong]

Description
Ever changed your config file and forgot which server you were accessing? Well we have a solution for you ;) This pr adds the server-url from your config file to the existing --server-metadata command.

Example output:

$ dockstore --server-metadata
{
  "apiVersion": "2.0.0",
  "country": "CAN",
  "friendlyName": "Dockstore",
  "version": "1.13.1"
}
server-url: https://dockstore.org/api

Charles brought up a great observation that this command is using the TRS 2.0.0-beta.2 API similar to a previous ticket so I've also created a new ticket to switch to the TRS 2.0.0 API.

Review Instructions
Build changes and run the --server-metadata command, ensure the server-url printed matches ~/.dockstore/config

Issue
DOCK-2198
GitHub issue

Security
If there are any concerns that require extra attention from the security team, highlight them here.

Please make sure that you've checked the following before submitting your pull request. Thanks!

• Check that you pass the basic style checks and unit tests by running ./mvnw clean install
• If this PR is for a user-facing feature, create and link a documentation ticket for this feature (usually in the same milestone as the linked issue). Style points if you create a documentation PR directly and link that instead.

[codecov]

Codecov Report

Base: 69.56% // Head: 69.47% // Decreases project coverage by -0.10% ⚠️

Coverage data is based on head (112c04e) compared to base (b99cb40).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop     #220      +/-   ##
=============================================
- Coverage      69.56%   69.47%   -0.10%     
+ Complexity      1058     1044      -14     
=============================================
  Files             47       47              
  Lines           5937     5939       +2     
  Branches         776      776              
=============================================
- Hits            4130     4126       -4     
  Misses          1493     1493              
- Partials         314      320       +6     

Flag	Coverage Δ
bitbuckettests	10.05% <66.66%> (+0.01%)	⬆️
confidentialtooltests	53.78% <100.00%> (-0.19%)	⬇️
confidentialworkflowtests	28.54% <66.66%> (-0.01%)	⬇️
nonconfidentialtests	33.05% <66.66%> (+0.03%)	⬆️
singularitytests	16.93% <66.66%> (+0.01%)	⬆️
unittests	8.04% <66.66%> (+0.01%)	⬆️

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

Impacted Files	Coverage Δ
.../src/main/java/io/dockstore/client/cli/Client.java	49.00% <100.00%> (+0.50%)	⬆️
...io/dockstore/client/cli/nested/WorkflowClient.java	74.04% <0.00%> (-0.62%)	⬇️
...ckstore/client/cli/nested/AbstractEntryClient.java	73.90% <0.00%> (-0.30%)	⬇️
...ava/io/dockstore/client/cli/nested/ToolClient.java	72.25% <0.00%> (-0.14%)	⬇️
...ockstore/client/cli/nested/BaseLanguageClient.java	58.43% <0.00%> (+0.60%)	⬆️

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

100.0% Coverage
0.0% Duplication