Make brial depend on pip

[kiwifb]

In #21083, brial was updated and now pip is used to install the sage bindings. But the dependency on pip was forgotten.

CC: @jdemeyer @vbraun

Component: packages: standard

Author: François Bissey

Branch/Commit: 6dd69fd

Reviewer: Erik Bray

Issue created by migration from https://trac.sagemath.org/ticket/24092

[kiwifb]

comment:1

Ready for review.

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New commits:

6dd69fd

Add pip to brial's dependencies, replace the use of PIP_INSTALL as per #24014.

[kiwifb]

Author: François Bissey

[kiwifb]

Commit: 6dd69fd

[kiwifb]

Branch: u/fbissey/brial_pip

[embray]

Reviewer: Erik Bray

[embray]

comment:3

Makes sense.

[vbraun]

Changed branch from u/fbissey/brial_pip to 6dd69fd