Fix CI for functional tests.

Fourth official release with preliminary pacing support, Pipfiles, availability as static or shared library, and various optimizations.

Bugfix

Third official release with congestion control, ARQ and improved estimation capabilities.

Second official release with enhanced API and estimation capabilities.

PRRT version 0.1.0

PRRT version 0.0.9

PRRT version 0.0.6

PRRT version 0.0.5

PRRT version 0.0.4

PRRT version 0.0.2

PRRT version 0.0.1