[Feature] Fix the unaligned memory accesses for upload_socket_data_buf in skywalking-rover

[tsint]

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Description

As mentioned in this article (https://docs.kernel.org/core-api/unaligned-memory-access.html), unaligned memory access can be costly even if it doesn't cause an exception or crash. The BPF code here (https://github.com/apache/skywalking-rover/blob/main/bpf/include/socket_data.h#L131-L132), when the buffer length exceeds 2047, gets truncated and then read and copied multiple times. Moreover, the subsequent reads and copies clearly have unaligned addresses.

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