Broaden google-cloud-core dependency (feast-dev#2094)

* Broaden google-cloud-core dependency

Limiting google-cloud-core to 1.4.* seems tighter than it needs to be. The version 1.7.2 (which is the latest before 2.0.0) passes tests and makes feast more interoperable as a library with other systems.

Signed-off-by: Pamela Toman <ptoman@paloaltonetworks.com>

* Distinguish signing and signing off commits in contrib guidance

Signed-off-by: Pamela Toman <ptoman@paloaltonetworks.com>

CONTRIBUTING.md

@@ -25,15 +25,17 @@ pre-commit install --hook-type pre-commit --hook-type pre-push
 ```
 3. On push, the pre-commit hook will run. This runs `make format` and `make lint`.
 
-### Signing commits
-Use git signing to sign your commits. See 
+### Signing off commits
+Use git signoffs to sign your commits. See 
 https://docs.github.com/en/github/authenticating-to-github/managing-commit-signature-verification for details
 
-Then, you can sign commits with the `-s` flag:
+Then, you can sign off commits with the `-s` flag:
 ```
 git commit -s -m "My first commit"
 ```
 
+GPG-signing commits with `-S` is optional.
+
 ### Incorporating upstream changes from master
 Our preference is the use of `git rebase [master]` instead of `git merge` : `git pull -r`.
 

sdk/python/setup.py

@@ -73,7 +73,7 @@
     "google-cloud-bigquery-storage >= 2.0.0",
     "google-cloud-datastore>=2.1.*",
     "google-cloud-storage>=1.34.*,<1.41",
-    "google-cloud-core==1.4.*",
+    "google-cloud-core>=1.4.0,<2.0.0",
 ]
 
 REDIS_REQUIRED = [