Upgrade: [dependabot] - bump fhir.version from 7.6.0 to 7.6.1 (#234)

Bumps `fhir.version` from 7.6.0 to 7.6.1.
Updates `ca.uhn.hapi.fhir:hapi-fhir-validation-resources-r4` from 7.6.0
to 7.6.1

Updates `ca.uhn.hapi.fhir:hapi-fhir-structures-r4` from 7.6.0 to 7.6.1

Updates `ca.uhn.hapi.fhir:hapi-fhir-validation` from 7.6.0 to 7.6.1

Updates `ca.uhn.hapi.fhir:hapi-fhir-caching-caffeine` from 7.6.0 to
7.6.1

Updates `ca.uhn.hapi.fhir:hapi-fhir-base` from 7.6.0 to 7.6.1


You can trigger a rebase of this PR by commenting `@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -18,7 +18,7 @@
         <maven.compiler.source>21</maven.compiler.source>
         <maven.compiler.target>21</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <fhir.version>7.6.0</fhir.version>
+        <fhir.version>7.6.1</fhir.version>
         <log4j.version>2.24.3</log4j.version>
         <fasterxml.version>2.18.2</fasterxml.version>
         <sonar.organization>nhsdigital</sonar.organization>