chore(deps): greenmail/standalone ^ 2.1.8 (#1352)

Floatpane Bot created

## What?

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[greenmail/standalone](https://redirect.github.com/greenmail-mail-test/greenmail/blob/master/greenmail-docker/standalone)
([source](https://redirect.github.com/greenmail-mail-test/greenmail)) |
service | patch | `2.1.3` → `2.1.8` |

---

### Release Notes

<details>
<summary>greenmail-mail-test/greenmail (greenmail/standalone)</summary>

###
[`v2.1.8`](https://redirect.github.com/greenmail-mail-test/greenmail/compare/release-2.1.7...release-2.1.8)

[Compare
Source](https://redirect.github.com/greenmail-mail-test/greenmail/compare/release-2.1.7...release-2.1.8)

###
[`v2.1.7`](https://redirect.github.com/greenmail-mail-test/greenmail/compare/release-2.1.6...release-2.1.7)

[Compare
Source](https://redirect.github.com/greenmail-mail-test/greenmail/compare/release-2.1.6...release-2.1.7)

###
[`v2.1.6`](https://redirect.github.com/greenmail-mail-test/greenmail/compare/release-2.1.5...release-2.1.6)

[Compare
Source](https://redirect.github.com/greenmail-mail-test/greenmail/compare/release-2.1.5...release-2.1.6)

###
[`v2.1.5`](https://redirect.github.com/greenmail-mail-test/greenmail/compare/release-2.1.4...release-2.1.5)

[Compare
Source](https://redirect.github.com/greenmail-mail-test/greenmail/compare/release-2.1.4...release-2.1.5)

###
[`v2.1.4`](https://redirect.github.com/greenmail-mail-test/greenmail/compare/release-2.1.3...release-2.1.4)

[Compare
Source](https://redirect.github.com/greenmail-mail-test/greenmail/compare/release-2.1.3...release-2.1.4)

</details>

## Why?

Automated dependency update via Renovate.

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Change summary

.github/workflows/integration.yml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Detailed changes

.github/workflows/integration.yml 🔗

@@ -14,7 +14,7 @@ jobs:
 
     services:
       greenmail:
-        image: greenmail/standalone:2.1.3
+        image: greenmail/standalone:2.1.8
         ports:
           - 3025:3025
           - 3110:3110