Add PDU session setup test

[Raguideau]

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality) Fix #28
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

• [ ] I have updated the documentation accordingly.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

• [x] I have read the CONTRIBUTING document.
• [x] Each of my commits messages include Signed-off-by: Author Name <authoremail@example.com> to accept the DCO.

[Raguideau]

Hi, Here is the PCAP when running the test with 1 UE: pduSetupTest.zip I updated GitHub Action workflow and the test so it runs with 10 UE now.

[linouxis9]

Hi, Here is the PCAP when running the test with 1 UE: pduSetupTest.zip I updated GitHub Action workflow and the test so it runs with 10 UE now.

Look all good to me, thanks a lot for your PR!