fix(ja4ebpf): split bpf2go generate into Ja4Tc + Ja4Ssl, fix RPM systemd-rpm-macros

- Use two separate //go:generate directives (Ja4Tc for tc_capture.c, Ja4Ssl
  for uprobe_ssl.c) to avoid duplicate LICENSE symbol and multi-file clang issue
- Update loader.go to hold tcObjs/sslObjs separately with correct field names:
  UprobeSslSetFd, UprobeSslReadEntry, UretprobeSslReadExit,
  KprobeAccept4Entry, KretprobeAccept4Exit
- Add systemd-rpm-macros to all three RPM build stages (el8/el9/el10)
  so that %{_unitdir} macro resolves correctly
- RPMs now build successfully for el8, el9, el10

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

old/services/sentinel/go.mod

@@ -0,0 +1,21 @@
+module github.com/antitbone/ja4/sentinel
+
+go 1.24.6
+
+toolchain go1.24.13
+
+require (
+	github.com/google/gopacket v1.1.19
+	github.com/psanford/tlsfingerprint v0.0.0-20251111180026-c742e470de9b
+	gopkg.in/yaml.v3 v3.0.1
+)
+
+require (
+	github.com/coreos/go-systemd/v22 v22.7.0 // indirect
+	golang.org/x/sys v0.1.0 // indirect
+	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
+)
+
+require github.com/antitbone/ja4/ja4common v0.1.0
+
+replace github.com/antitbone/ja4/ja4common => ../../shared/go/ja4common