This update for obs-service-format_spec_file fixes the following issues:

Update to version 20260320:

  * A "+" suffix is only allowed for license-id
  * Start introducing LicenseRef-SUSE-*
  * License updates from SPDX org (March 2026)
  * Update test case for changes in 1ccd56d0
  * Empty section may contain empty lines instead of setting 'after_lines'
  * Update test case for changes in 51da0388
  * Fix _split_final_comments hack
  * Don't add unneeded empty lines after Copyrights
  * Update test cases
  * Special handling for 'SUSE Software Solutions Germany' license
  * Keep 3rd party licenses intact
  * Keep SUSE T&Cs close to SUSE Copyright
  * Make create_copyright_section() return true when SUSE Copyright processed
  * Remove more LLC and contributors also from the copyright strings
  * Fix indentation to run checks on pull request
  * Change autoadded copyright header to include "and contributors"
  * Add 3 extra test-cases
  * Run tests in github actions
  * Preserve the order of multiple copyright lines.
  * Allow for truly empty lines in copyright sections
  * Accept empty lines in %changelog sections
  * Update licenses
  * Avoid using temporary files for tests