Fix usdt example in CI

[bobrik]

It broke with the ubuntu upgrade in #845.

Debian usdt probes for python3:

ivan@vm:~/projects/ebpf_exporter$ sudo tplist-bpfcc -vv -l python3
python:audit [sema 0xa5f0fe]
  location #1 /usr/bin/python3 0x4728b8
    argument #1 8 unsigned bytes @ regs[22]
    argument #2 8 unsigned bytes @ regs[21]
python:gc__done [sema 0xa5f0f8]
  location #1 /usr/bin/python3 0x48637c
    argument #1 8 signed   bytes @ regs[28]
python:gc__start [sema 0xa5f0f6]
  location #1 /usr/bin/python3 0x486494
    argument #1 4 signed   bytes @ *(sp + 152)
python:line [sema 0xa5f0f4]
  location #1 /usr/bin/python3 0x4b88dc
    argument #1 8 unsigned bytes @ regs[26]
    argument #2 8 unsigned bytes @ regs[0]
    argument #3 4 signed   bytes @ regs[28]
python:import__find__load__start [sema 0xa5f0fa]
  location #1 /usr/bin/python3 0x50ec90
    argument #1 8 unsigned bytes @ regs[0]
python:import__find__load__done [sema 0xa5f0fc]
  location #1 /usr/bin/python3 0x50eca8
    argument #1 8 unsigned bytes @ regs[0]
    argument #2 4 signed   bytes @ regs[1]
python:function__entry [sema 0xa5f0e8]
  location #1 /usr/bin/python3 0x469fcc
    argument #1 8 unsigned bytes @ regs[20]
    argument #2 8 unsigned bytes @ regs[21]
    argument #3 4 signed   bytes @ regs[0]
python:function__return [sema 0xa5f0ea]
  location #1 /usr/bin/python3 0x46a01c
    argument #1 8 unsigned bytes @ regs[20]
    argument #2 8 unsigned bytes @ regs[21]
    argument #3 4 signed   bytes @ regs[0]

Ubuntu 24.04 probes:

ivan@vm:~/projects/ebpf_exporter$ sudo tplist-bpfcc -vv -l ./python3
python:import__find__load__done [sema 0xb8a3ac]
  location #1 ./python3 0x58c604
    argument #1 8 unsigned bytes @ regs[0]
    argument #2 4 signed   bytes @ regs[1]
python:import__find__load__start [sema 0xb8a3aa]
  location #1 ./python3 0x58c624
    argument #1 8 unsigned bytes @ regs[0]
python:audit [sema 0xb8a3ae]
  location #1 ./python3 0x5a220c
    argument #1 8 unsigned bytes @ regs[23]
    argument #2 8 unsigned bytes @ regs[21]
python:gc__start [sema 0xb8a3a6]
  location #1 ./python3 0x5b1540
    argument #1 4 signed   bytes @ *(sp + 72)
python:gc__done [sema 0xb8a3a8]
  location #1 ./python3 0x5b16f4
    argument #1 8 signed   bytes @ regs[21]

Currently we're using python:function__entry and naturally it doesn't work in Ubuntu.

[bobrik]

See python/cpython#104280

[bobrik]

Done in #416.