contrib: fix debian-otel build failure on loongarch64

[znley]

Proposed changes

This patch will allow nginx deb packages to build smoothly on loongarch64 platforms, as the older abseil-cpp is not well supported.

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[thresheek]

Hi @znley !

Thank you for your PR.

As we don't support loongson arch and have no means of checking if it actually builds fine on this or subsequent changes, I'm inclined not to merge this.

Additionally, this isnt enough to fix a debian package build - you'd need to edit the corresponding Makefile to apply that patch too.

[znley]

@thresheek

Additionally, this isnt enough to fix a debian package build - you'd need to edit the corresponding Makefile to apply that patch too.

Thanks for your reminder, I almost forgot debian/Makefile.module-otel.

As we don't support loongson arch and have no means of checking if it actually builds fine on this or subsequent changes, I'm inclined not to merge this.

I understand what you mean. Actually I have already done a local build for nginx. This PR is just for future consideration. If you don't mind, you can leave this request so that I can continue it at a suitable time in the future.