fix(deps): update dependency org.springframework.boot:spring-boot-gradle-plugin to v4.0.3 (#1109)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Adoption](https://docs.renovatebot.com/merge-confidence/) |
[Passing](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|---|---|
|
[org.springframework.boot:spring-boot-gradle-plugin](https://spring.io/projects/spring-boot)
([source](https://redirect.github.com/spring-projects/spring-boot)) |
`4.0.2` → `4.0.3` |
![age](https://developer.mend.io/api/mc/badges/age/maven/org.springframework.boot:spring-boot-gradle-plugin/4.0.3?slim=true)
|
![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/org.springframework.boot:spring-boot-gradle-plugin/4.0.3?slim=true)
|
![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/org.springframework.boot:spring-boot-gradle-plugin/4.0.2/4.0.3?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/org.springframework.boot:spring-boot-gradle-plugin/4.0.2/4.0.3?slim=true)
|

---

### Release Notes

<details>
<summary>spring-projects/spring-boot
(org.springframework.boot:spring-boot-gradle-plugin)</summary>

###
[`v4.0.3`](https://redirect.github.com/spring-projects/spring-boot/compare/v4.0.2...v4.0.3)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - Only on Sunday and Saturday ( * * * * 0,6 ) in timezone
Europe/Dublin.

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

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

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/BSStudio/robonaut-server).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yNS4xMSIsInVwZGF0ZWRJblZlciI6IjQzLjI1LjExIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 springdoc = "3.0.1"
-springBoot = "4.0.2"
+springBoot = "4.0.3"
 kotest = "6.1.3"
 spotless = "8.2.1"
 detekt = "2.0.0-alpha.2"