Regression on 'Elastic Endpoint hits "perf" buffer limit on EXECVE monitoring via kprobe when executable command arguments larger than 2048 bytes'

As mentioned in the title we observed a regression on one of our previously reported (and fixed) issues, namely #4 on elastic-agent 7.16.2. Errors like the following, along with the kernel taint flag being set to `512`, were observed when large enough event traces are generated :

```
[Wed Feb 9 19:51:30 2022] ------------[ cut here ]------------
[Wed Feb 9 19:51:30 2022] perf buffer not large enough
[Wed Feb 9 19:51:30 2022] WARNING: CPU: 0 PID: 840 at kernel/trace/trace_event_perf.c:402 perf_trace_buf_alloc+0x86/0x90
[Wed Feb 9 19:51:30 2022] Modules linked in: nfnetlink hid_generic usbhid hid binfmt_misc sr_mod cdrom sg ata_generic ip6table_filter ip6_tables xt_multiport intel_rapl_msr intel_rapl_common xt_pkttype crc32_pclmul xt_tcpudp xt_state xt_conntrack ghash_clmulni_intel iptable_filter aesni_intel ata_piix libaes crypto_simd libata cryptd glue_helper rapl nf_conntrack_tftp nf_conntrack uhci_hcd nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ehci_hcd scsi_mod usbcore virtio_net net_failover joydev virtio_balloon failover pcspkr usb_common i2c_piix4 button qemu_fw_cfg sunrpc loop fuse configfs virtio_rng rng_core ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 crc32c_generic virtio_blk bochs_drm drm_vram_helper drm_kms_helper cec drm_ttm_helper ttm drm crct10dif_pclmul crct10dif_common psmouse crc32c_intel evdev serio_raw virtio_pci virtio_ring virtio
```

These issues are observed on `Linux 4.19.0-16-amd64 #1 SMP Debian 4.19.181-1 (2021-03-19) x86_64 GNU/Linux` as well as `Linux debian 5.10.0-11-amd64 #1 SMP Debian 5.10.92-1 (2022-01-18) x86_64 GNU/Linux` host instances.

A quick way to reproduce the issue on a host running elastic-agent `7.16.2` and ElasticEndpoint services is to create a large enough file in the filesystem, by running a command such as :

```touch /tmp/unix: A*2048 (or enough to exceed the perf buffer)```