Fix validate.bat java execution bug

[jordanpadams]

🗒️ Summary

Fix bug with placement of quotes in validate.bat when trying to run java via command-line. Not sure why this breaks in the environment we have setup, and it has not been noticed by other users, but this should work for others as well.

C:\Users\jpadams\Downloads\validate-3.3.1-bin\validate-3.3.1\bin>validate.bat --help
usage: validate <target> <options>
    --add-context-products <dir/files>   Explicitly specify a JSON file (or
                                         directory of files) containing
                                         additional context product information
                                         used for validation. WARNING: This
                                         should only be used for development
                                         purposes. All context products must be
                                         registered for validity of a product in
                                         an archive.
    --allow-unlabeled-files              Tells the tool to not check for
                                         unlabeled files in a bundle or
                                         collection.
    --alternate_file_paths <path>        This flag will allow for additional
                                         paths to be specified when attempting
                                         referential integrity validation
                                         (pds4.bundle or pds4.collection rules).
                                         FOR DEVELOPMENT PURPOSES ONLY
 -B,--base-path <path>                   Specify a path for the tool to use in
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