chore: use gapic-generator-python 0.62.1 (#260)

- [ ] Regenerate this pull request now.

fix: resolve DuplicateCredentialArgs error when using credentials_file

committer: parthea
PiperOrigin-RevId: 425964861

Source-Link: googleapis/googleapis@84b1a5a

Source-Link: https://github.com/googleapis/googleapis-gen/commit/4fb761bbd8506ac156f49bac5f18306aa8eb3aa8
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiNGZiNzYxYmJkODUwNmFjMTU2ZjQ5YmFjNWYxODMwNmFhOGViM2FhOCJ9

Closes #259

language/snippets/classify_text/requirements.txt

@@ -1,4 +1,3 @@
 google-cloud-language==2.3.1
 numpy==1.22.1; python_version > '3.7'
 numpy==1.21.4; python_version == '3.7'
-numpy==1.19.5; python_version <= '3.6'