fix(deps): update dependency env-var to v7.5.0 (#457)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [env-var](https://togithub.com/evanshortiss/env-var) | [`7.4.1` ->
`7.5.0`](https://renovatebot.com/diffs/npm/env-var/7.4.1/7.5.0) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/env-var/7.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/env-var/7.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/env-var/7.4.1/7.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/env-var/7.4.1/7.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>evanshortiss/env-var (env-var)</summary>

###
[`v7.5.0`](https://togithub.com/evanshortiss/env-var/blob/HEAD/CHANGELOG.md#750-20052024)

[Compare
Source](https://togithub.com/evanshortiss/env-var/compare/7.4.2...7.5.0)

- Add `AsSet()` accessor
([#&#8203;173](https://togithub.com/evanshortiss/env-var/issues/173))

###
[`v7.4.2`](https://togithub.com/evanshortiss/env-var/blob/HEAD/CHANGELOG.md#742-10082024)

[Compare
Source](https://togithub.com/evanshortiss/env-var/compare/7.4.1...7.4.2)

- Fix docstrings for positive/negative int/float validators
([#&#8203;172](https://togithub.com/evanshortiss/env-var/issues/172))

</details>

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package.json

@@ -28,7 +28,7 @@
  "@pollyjs/core": "6.0.6",
  "@pollyjs/persister-fs": "6.0.6",
  "ci-info": "3.9.0",
- "env-var": "7.4.1",
+ "env-var": "7.5.0",
  "lodash.merge": "4.6.2",
  "setup-polly-jest": "0.11.0",
  "ts-is-present": "1.2.2",