chore(deps): update dependency google-auth to v1.27.0 (#76)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [google-auth](https://togithub.com/googleapis/google-auth-library-python) | `==1.26.1` -> `==1.27.0` | [![age](https://badges.renovateapi.com/packages/pypi/google-auth/1.27.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/pypi/google-auth/1.27.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/pypi/google-auth/1.27.0/compatibility-slim/1.26.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/pypi/google-auth/1.27.0/confidence-slim/1.26.1)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>googleapis/google-auth-library-python</summary>

### [`v1.27.0`](https://togithub.com/googleapis/google-auth-library-python/blob/master/CHANGELOG.md#&#8203;1270-httpswwwgithubcomgoogleapisgoogle-auth-library-pythoncomparev1261v1270-2021-02-16)

[Compare Source](https://togithub.com/googleapis/google-auth-library-python/compare/v1.26.1...v1.27.0)

##### Features

-   workload identity federation support ([#&#8203;698](https://www.github.com/googleapis/google-auth-library-python/issues/698)) ([d4d7f38](https://www.github.com/googleapis/google-auth-library-python/commit/d4d7f3815e0cea3c9f39a5204a4f001de99568e9))

##### Bug Fixes

-   add pyopenssl as extra dependency ([#&#8203;697](https://www.github.com/googleapis/google-auth-library-python/issues/697)) ([aeab5d0](https://www.github.com/googleapis/google-auth-library-python/commit/aeab5d07c5538f3d8cce817df24199534572b97d))

##### [1.26.1](https://www.github.com/googleapis/google-auth-library-python/compare/v1.26.0...v1.26.1) (2021-02-11)

##### Documentation

-   fix a typo in the user guide (avaiable -> available) ([#&#8203;680](https://www.github.com/googleapis/google-auth-library-python/issues/680)) ([684457a](https://www.github.com/googleapis/google-auth-library-python/commit/684457afd3f81892e12d983a61672d7ea9bbe296))

##### Bug Fixes

-   revert workload identity federation support ([#&#8203;691](https://togithub.com/googleapis/google-auth-library-python/pull/691))

</details>

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language/snippets/api/requirements.txt

@@ -1,3 +1,3 @@
 google-api-python-client==1.12.8
-google-auth==1.26.1
+google-auth==1.27.0
 google-auth-httplib2==0.0.4

language/snippets/classify_text/requirements.txt

@@ -1,3 +1,3 @@
 google-cloud-language==2.0.0
-numpy==1.20.1; python_version > 3.6
-numpy==1.19.5; python_version <= 3.6
+numpy==1.20.1; python_version > '3.6'
+numpy==1.19.5; python_version <= '3.6'