chore(deps): update quay.io/prometheus/prometheus docker tag to v3.4.2 (rnaveiras#375)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[quay.io/prometheus/prometheus](https://redirect.github.com/prometheus/prometheus)
| patch | `v3.4.1` -> `v3.4.2` |

---

### Release Notes

<details>
<summary>prometheus/prometheus (quay.io/prometheus/prometheus)</summary>

###
[`v3.4.2`](https://redirect.github.com/prometheus/prometheus/releases/tag/v3.4.2):
3.4.2 / 2025-06-26

[Compare
Source](https://redirect.github.com/prometheus/prometheus/compare/v3.4.1...v3.4.2)

- \[BUGFIX] OTLP receiver: Fix default configuration not being respected
if the `otlp:` block is unset in the config file.
[#&#8203;16693](https://redirect.github.com/prometheus/prometheus/issues/16693)

</details>

---

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are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
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---

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---

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Author: rnaveiras

compose.yaml

@@ -80,7 +80,7 @@ services:
 
   prometheus:
     <<: *network
-    image: quay.io/prometheus/prometheus:v3.4.1@sha256:9abc6cf6aea7710d163dbb28d8eeb7dc5baef01e38fa4cd146a406dd9f07f70d
+    image: quay.io/prometheus/prometheus:v3.4.2@sha256:3b1d5be5c3eef4f027665ddaa3b1a7de8a58d96a0a6de5dd45629afd267ecaf0
     ports:
       - "9090:9090"
     volumes: