Enhancement: Synchronize with ergebnis/php-library-template

[localheinz]

This PR

• synchronizes with ergebnis/php-library-template

[codecov]

Codecov Report

Merging #267 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             master   #267   +/-   ##
=======================================
  Coverage        80%    80%           
  Complexity       39     39           
=======================================
  Files             3      3           
  Lines           175    175           
=======================================
  Hits            140    140           
  Misses           35     35

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update eae47be...b03ea5f. Read the comment docs.