chore(codeowners): Update CODEOWNERS for library config ownership (#1793)

# What does this PR do?

Updates CODEOWNERS to be apm-sdk-capabilities-rust rather than the
broader apm-sdk-capabilities team

# Motivation

Narrows the code ownership in this repo

# Additional Notes

N/A

# How to test the change?

CODEOWNERS is automatically validated

Author: bm1549

.github/CODEOWNERS

@@ -44,7 +44,7 @@ libdd-crashtracker*/                 @DataDog/libdatadog-profiling
 libdd-data-pipeline*/                @DataDog/libdatadog-apm
 libdd-ddsketch*/                     @DataDog/libdatadog-apm @DataDog/apm-common-components-core
 libdd-dogstatsd-client               @DataDog/apm-common-components-core
-libdd-library-config*/               @DataDog/apm-sdk-capabilities
+libdd-library-config*/               @DataDog/apm-sdk-capabilities-rust
 libdd-libunwind*/                    @DataDog/libdatadog-profiling
 libdd-log*/                          @DataDog/apm-common-components-core
 libdd-profiling*/                    @DataDog/libdatadog-profiling