mvnw wrapper file location must be on $PATH, executable does not look in local directory first

[ctcampbell]

When using the executable I needed to run export PATH=./:$PATH to get it to find the committed mvnw file in the repo, otherwise I get an error:

~/Downloads/executables/maven-dependency-tree-submission-macos -t xxxxxx -r od-ctcampbell/demo-jenkins-1 -b refs/head/main -s $(git rev-parse HEAD)
::group::depgraph-maven-plugin:reactor
::warning::Error encountered executing maven: Unable to locate executable file: mvnw. Please verify either the file path exists or the file can be found within a directory specified by the PATH environment variable. Also check the file mode to verify the file is executable.


::endgroup::
::error::Error: Failed to successfully generate reactor results with Maven, exit code: -1
Failed to generate a dependency snapshot, check logs for more details, Error: A problem was encountered generating dependency files, please check execution logs for details; Failed to successfully generate reactor results with Maven, exit code: -1
Error: A problem was encountered generating dependency files, please check execution logs for details; Failed to successfully generate reactor results with Maven, exit code: -1
    at /snapshot/maven-dependency-submission-action/lib/src/snapshot-generator.js:115:19
    at Generator.next (<anonymous>)
    at fulfilled (/snapshot/maven-dependency-submission-action/lib/src/snapshot-generator.js:28:58)
A problem was encountered generating dependency files, please check execution logs for details; Failed to successfully generate reactor results with Maven, exit code: -1
Usage: maven-dependency-tree-submission [options]

Options:
  -V, --version                             output the version number
  -t, --token <token>                       GitHub access token
  -r --repository <repository>              GitHub repository, owner/repo_name format
  -b --branch-ref <ref>                     GitHub repository branch reference, e.g. refs/heads/main
  -s --sha <commitSha>                      GitHub repository commit SHA
  -d --directory <maven-project-directory>  the directory containing the Maven POM file (default: ".")
  --settings-file <settings-file>           path to the Maven settings file
  --ignore-maven-wrapper                    ingore Maven wrappers, if present, and use Maven from the PATH
  --maven-args <maven-args>                 additional arguments to pass to Maven
  --github-api-url <url>                    GitHub API URL (default: "https://api.github.com")
  -j --job-name <jobName>                   Optional name for the activity creating and submitting the graph (default: "maven-dependency-submission-cli")
  -i --run-id <jobName>                     Optional Run ID number for the activity that is providing the graph
  -h, --help                                display help for command