Solve some minor Typo

manifests/ztp_server.yaml

proto/ztp_server.proto

src/common/Constants.py

src/ztp_server/.gitlab-ci.yml

src/ztp_server/data/provisioning_script_sonic.sh

src/ztp_server/data/ztp.json

src/ztp_server/requirements.in

src/ztp_server/service/ZtpServerServiceServicerImpl.py

src/ztp_server/service/__main__.py

...ce/rest_server/ztpServer_plugins/tools/HttpStatusCodes.py

...erver/ztpServer_plugins/ztp_provisioning_api/Resources.py

...st_server/ztpServer_plugins/ztp_provisioning_api/Tools.py

...server/ztpServer_plugins/ztp_provisioning_api/__init__.py