Update upstream source from tag 'debian/upstream/2.1.0'

.pre-commit-config.yaml

PKG-INFO

java/pom.xml

...c/main/java/org/softwareheritage/graph/rpc/Traversal.java

java/src/test/java/org/softwareheritage/graph/GraphTest.java

...t/java/org/softwareheritage/graph/rpc/CountEdgesTest.java

...t/java/org/softwareheritage/graph/rpc/CountNodesTest.java

...va/org/softwareheritage/graph/rpc/TraverseLeavesTest.java

proto/swhgraph.proto

requirements.txt

swh.graph.egg-info/PKG-INFO

swh.graph.egg-info/SOURCES.txt

swh.graph.egg-info/requires.txt

swh/graph/cli.py

swh/graph/grpc/swhgraph.proto

swh/graph/grpc/swhgraph_pb2.py

swh/graph/grpc/swhgraph_pb2.pyi

swh/graph/http_client.py

swh/graph/http_naive_client.py

swh/graph/http_rpc_server.py