fix: Error when beanstalk environment does not exist or is not found

[Justinon]

Task: https://staging.clickup.com/t/333/CLK-91295

Used yalc to test in clickup repo via a test group created containing a non-existent Beanstalk environment. Group defined like so:

const testGroup: IGroupFactory = (config: IConfig): ICUBeanstalkGroup => {
    ...
    return {
        environments: [
            {
                app: 'clickup-staging',
                // Definitely does not exist
                name: 'clickup-staging-test-jglo',
            },
        ],
        ...
    };
};

Yielded the following on dry-run and force modes:

Configuration: 
{
  "ebGroup": "testGroup",
  "ebAppVersionGitsha": "7b1e725f61414c89f17bf8001ed61e6f2c676bd9",
  "ebAppVersionDescription": "test desc",
  "force": true,
  "logLevel": "info"
}

Beginning deploy process for beanstalk group testGroup
Creating application versions for beanstalk group testGroup
Not creating new application version travis-ebv2-lacework-7b1e725f61414c89f17bf8001ed61e6f2c676bd9 for app clickup-staging since it already exists.
All needed application versions exist.
Verifying environments are ready to receive deployment before initiating...
Checking beanstalks health... Attempt 1 of 10
Error: Could not check group health.
Error: The following Beanstalk Environments either do not exist or were not found: ["clickup-staging-test-jglo"]
Deploy to beanstalk group testGroup failed.

[codecov]

Codecov Report

Merging #18 (8ffca37) into main (d4184a7) will increase coverage by 0.68%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #18      +/-   ##
==========================================
+ Coverage   98.02%   98.71%   +0.68%     
==========================================
  Files           7        7              
  Lines         608      623      +15     
  Branches       59       81      +22     
==========================================
+ Hits          596      615      +19     
+ Misses         12        8       -4     

Impacted Files	Coverage Δ
src/deploy.ts	100.00% <100.00%> (+1.43%)	⬆️
src/helpers/healthiness.ts	97.08% <100.00%> (+1.29%)	⬆️

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[ahammond]

Nice tests!