[WIP] feat: extend string data filtering to LSM related events

[rscampos]

1. Explain what the PR does

68b5feb test: external triggers for integration
db02b57 feat(ebpf): extend string data filtering for LSM events
7a42ae3 feat: allow different field names

68b5feb test: external triggers for integration

- Add external scripts to be triggered in order to test data filter
related to events that uses LSM.

db02b57 feat(ebpf): extend string data filtering for LSM events

- Only for LSM related events.

7a42ae3 feat: allow different field names

- Allow any field name in the in-kernel string filter.
- Currently, only one string-type field name is supported.
- Future support for multiple field names is planned.
- Start with LSM related events.

2. Explain how to test it

3. Other comments

This PR only focus on LSM hooks and the related tests.
part of #4432

Event	String Name	Trigger
✅ security_bprm_check	pathname	5
✅ security_file_open	pathname	1 (already present)
✅ security_inode_unlink	pathname	3
✅ security_sb_mount	path	Yes
✅ security_bpf_map	map_name	Yes
✅ security_kernel_read_file	pathname	4
✅ security_inode_mknod	file_name	Yes
✅ security_kernel_post_read_file	pathname	4
✅ security_inode_symlink	linkpath	3
✅ security_mmap_file	pathname	2 (already present)
✅ security_file_mprotect	pathname	5
✅ security_inode_rename	old_path	3
✅ security_bpf_prog	name	Yes
✅ security_path_notify	pathname	Yes
✅ shared_object_loaded	pathname	5

Trigger	Name
1	comm: event: data: trace event security_file_open set in multiple policies using multiple filter types
2	comm: event: data: trace event security_mmap_file using multiple filter types
3	event: data: trace event security_inode_symlink, security_inode_rename and security_inode_unlink using data filter
4	event: data: trace event security_kernel_read_file and security_kernel_post_read_file using data filter
5	comm: event: data: trace event security_bprm_check, shared_object_loaded and security_file_mprotect using data filter