fix(deps): update dependency winston-loki to ^6.0.8 (#5911)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [winston-loki](https://togithub.com/JaniAnttonen/winston-loki) |
[`^6.0.3` ->
`^6.0.8`](https://renovatebot.com/diffs/npm/winston-loki/6.0.8/6.0.8) |
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|
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|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/winston-loki/6.0.8/6.0.8?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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package.json

@@ -83,7 +83,7 @@
     "whatwg-fetch": "^3.6.2",
     "which": "^4.0.0",
     "winston": "^3.3.3",
-    "winston-loki": "^6.0.3",
+    "winston-loki": "^6.0.8",
     "winston-papertrail": "^1.0.5",
     "winston-transport": "^4.4.1",
     "yaml": "^2.3.4"