Upgrade asciidoctor-diagram to 1.5.1
Upgrade asciidoctor-diagram to 1.5.1

lefou/asciidoctorj,asciidoctor/asciidoctorj,robertpanzer/asciidoctorj,lefou/asciidoctorj,abelsromero/asciidoctorj,ysb33r/asciidoctorj,asciidoctor/asciidoctorj,ysb33r/asciidoctorj,robertpanzer/asciidoctorj,abelsromero/asciidoctorj,robertpanzer/asciidoctorj,ysb33r/asciidoctorj,lefou/asciidoctorj,abelsromero/asciidoctorj,ysb33r/asciidoctorj,asciidoctor/asciidoctorj,lefou/asciidoctorj