utils/upload_kalkun_deps_to_ppa.sh: build source package when on a su… #270

Job	Run time
Debian package	18m 52s
Get PHP versions to pack for	2s
Prebuild packages by PHP version	2m 19s
Create artifacts for 8.2.12	9s
Create artifacts for 8.0	4s
Create artifacts for 8.1	11s
Create artifacts for 8.2	5s
Create artifacts for 8.3	10s
Create artifacts for 8.4	4s
Create artifacts for 7.0	6s
Create artifacts for 7.1	4s
Create artifacts for 7.2	10s
Create artifacts for 7.3	4s
Create artifacts for 7.4	4s
Create artifacts for 5.6	6s
Create release and add packages	5s
Delete temporary artifact	3s
	22m 38s

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