Update gRIBI server to accommodate gRPC changes.

[robshakir]

commit ebfc91c7200f6e3a41e3c4a73eadd115520383e2
Author: Rob Shakir <robjs@google.com>
Date:   Mon Jan 6 20:34:01 2025 +0000

    Initialise the unimplemented server given that gRIBI is embedded.
    
     * (M) gribi/gribi.go
       - Ensure that the unimplemented server is initialised correctly.

This is required since gRPC added a check that the unimplemented servers
that are embedded as pointers must not be nil.

[github-actions]

Pull Request Test Coverage Report for Build 12640081523

Details

• 4 of 6 (66.67%) changed or added relevant lines in 1 file are covered.
• 19 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-0.002%) to 2.76%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
gribi/gribi.go	4	6	66.67%

Files with Coverage Reduction	New Missed Lines	%
gnsi/pathz/pathz.go	2	84.03%
dataplane/standalone/pkthandler/pktiohandler/pktiohandler.go	8	44.74%
sysrib/zapi.go	9	71.5%

Totals
Change from base Build 12421778272:	-0.002%
Covered Lines:	19961
Relevant Lines:	723122

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💛 - Coveralls