Upgrade proto and generate profiles (open-telemetry#10155)

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Ex. Adding a feature - Explain what this achieves.-->
#### Description

This upgrades the proto to their latest version, and generates the
profiles.

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#### Link to tracking issue
Part of open-telemetry#10109

cc @mx-psi

Makefile

@@ -157,10 +157,10 @@ ocb:
 OPENTELEMETRY_PROTO_SRC_DIR=pdata/internal/opentelemetry-proto
 
 # The branch matching the current version of the proto to use
-OPENTELEMETRY_PROTO_VERSION=v1.2.0
+OPENTELEMETRY_PROTO_VERSION=v1.3.1
 
 # Find all .proto files.
-OPENTELEMETRY_PROTO_FILES := $(subst $(OPENTELEMETRY_PROTO_SRC_DIR)/,,$(wildcard $(OPENTELEMETRY_PROTO_SRC_DIR)/opentelemetry/proto/*/v1/*.proto $(OPENTELEMETRY_PROTO_SRC_DIR)/opentelemetry/proto/collector/*/v1/*.proto))
+OPENTELEMETRY_PROTO_FILES := $(subst $(OPENTELEMETRY_PROTO_SRC_DIR)/,,$(wildcard $(OPENTELEMETRY_PROTO_SRC_DIR)/opentelemetry/proto/*/v1/*.proto $(OPENTELEMETRY_PROTO_SRC_DIR)/opentelemetry/proto/collector/*/v1/*.proto $(OPENTELEMETRY_PROTO_SRC_DIR)/opentelemetry/proto/*/v1experimental/*.proto $(OPENTELEMETRY_PROTO_SRC_DIR)/opentelemetry/proto/collector/*/v1experimental/*.proto))
 
 # Target directory to write generated files to.
 PROTO_TARGET_GEN_DIR=pdata/internal/data/protogen