chore: use === in requirements.txt for environment specific pins (#284)

* chore(deps): update dependency numpy to v1.22.3

* chore: use === in requirements.txt for environment specific pins

* revert version bump for environment specific pin

Co-authored-by: Anthonios Partheniou <[email protected]>

Author: renovate-bot

language/snippets/classify_text/requirements.txt

@@ -1,3 +1,3 @@
 google-cloud-language==2.4.1
 numpy==1.22.3; python_version > '3.7'
-numpy==1.21.4; python_version == '3.7'
+numpy===1.21.4; python_version == '3.7'