[S] Change in osmo-ci[master]: OBS: build_srcpkg: install rebar3 without apt

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laforge has posted comments on this change by osmith. ( https://gerrit.osmocom.org/c/osmo-ci/+/41368?usp=email )

Change subject: OBS: build_srcpkg: install rebar3 without apt ......................................................................

Patch Set 1: Code-Review-1

(1 comment)

File scripts/obs/data/build_srcpkg.Dockerfile:

https://gerrit.osmocom.org/c/osmo-ci/+/41368/comment/b000c0ba_5672fb27?usp=e... : PS1, Line 36: RU we should at least verify a cryptographic signatuer (if provided by upstream) or compare with a known hash when downloading arbitrary binaries from the web...