runtime: fix segfault due to missing argv on musl-linux c-archive

[adambenhassen]

This change fixes a segmentation fault that occurs on musl-based systems
when using c-archive (or c-shared with LD_PRELOAD). The issue was caused
by uninitialized argv and envp, which led to crashes at runtime.

This fix ensures that both argv and envp are correctly initialized,
preventing the segmentation fault.

While this fix addresses crashes due to missing argv and envp, it does not
address the error described in issue #54805, where a c-shared library
loaded with dlopen triggers an error related to initial-exec access to TLS
objects 1 in a dynamically loaded library.

Fixes #13492

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