update weaver to 0.12.0

Author: Liudmila Molkova

scripts/semconv/generate.sh

@@ -7,7 +7,7 @@ ROOT_DIR="${SCRIPT_DIR}/../.."
 # freeze the spec version to make SemanticAttributes generation reproducible
 SEMCONV_VERSION=1.29.0
 SEMCONV_VERSION_TAG=v$SEMCONV_VERSION
-OTEL_WEAVER_IMG_VERSION=v0.10.0
+OTEL_WEAVER_IMG_VERSION=v0.12.0
 INCUBATING_DIR=_incubating
 cd ${SCRIPT_DIR}