Update dependency strukturag/nextcloud-spreed-signaling to v2 (#504)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [strukturag/nextcloud-spreed-signaling](https://github.com/strukturag/nextcloud-spreed-signaling) | major | `v1.3.2` -> `v2.0.0` |

---

### Release Notes

<details>
<summary>strukturag/nextcloud-spreed-signaling (strukturag/nextcloud-spreed-signaling)</summary>

### [`v2.0.0`](https://github.com/strukturag/nextcloud-spreed-signaling/releases/tag/v2.0.0)

[Compare Source](strukturag/nextcloud-spreed-signaling@v1.3.2...v2.0.0)

##### Added

-   Federation support  [#&#8203;776](strukturag/nextcloud-spreed-signaling#776)
-   CI: Add job to update generated files.  [#&#8203;790](strukturag/nextcloud-spreed-signaling#790)
-   Expose backend session limits through prometheus stats.  [#&#8203;792](strukturag/nextcloud-spreed-signaling#792)
-   CI: Test with Golang 1.23  [#&#8203;805](strukturag/nextcloud-spreed-signaling#805)

##### Changed

-   Keep generated files in the repository.  [#&#8203;781](strukturag/nextcloud-spreed-signaling#781)
-   Improve caching when fetching capabilities.  [#&#8203;780](strukturag/nextcloud-spreed-signaling#780)
-   Enforce a minimum duration to cache capabilities.  [#&#8203;783](strukturag/nextcloud-spreed-signaling#783)
-   docs: Use the latest LTS of Ubuntu and Python 3.12.  [#&#8203;791](strukturag/nextcloud-spreed-signaling#791)
-   CI: Push generated code from service account.  [#&#8203;793](strukturag/nextcloud-spreed-signaling#793)
-   CI: Only build code if token exists (i.e. with Dependabot).  [#&#8203;794](strukturag/nextcloud-spreed-signaling#794)
-   CI: Always do a full build of generated files.  [#&#8203;795](strukturag/nextcloud-spreed-signaling#795)
-   Remove compatibility code for Go < 1.21.  [#&#8203;806](strukturag/nextcloud-spreed-signaling#806)
-   Send ping requests to local instance for federated sessions.  [#&#8203;808](strukturag/nextcloud-spreed-signaling#808)

##### Dependencies

-   Bump sphinx from 7.3.7 to 7.4.4 in /docs  [#&#8203;773](strukturag/nextcloud-spreed-signaling#773)
-   Bump google.golang.org/grpc from 1.64.0 to 1.65.0  [#&#8203;769](strukturag/nextcloud-spreed-signaling#769)
-   Bump sphinx from 7.4.4 to 7.4.5 in /docs  [#&#8203;774](strukturag/nextcloud-spreed-signaling#774)
-   Bump github.com/nats-io/nats-server/v2 from 2.10.17 to 2.10.18  [#&#8203;775](strukturag/nextcloud-spreed-signaling#775)
-   Bump sphinx from 7.4.5 to 7.4.6 in /docs  [#&#8203;777](strukturag/nextcloud-spreed-signaling#777)
-   Bump sphinx from 7.4.6 to 7.4.7 in /docs  [#&#8203;779](strukturag/nextcloud-spreed-signaling#779)
-   Bump the etcd group with 4 updates  [#&#8203;778](strukturag/nextcloud-spreed-signaling#778)
-   Bump golangci/golangci-lint-action from 6.0.1 to 6.1.0  [#&#8203;788](strukturag/nextcloud-spreed-signaling#788)
-   Bump google.golang.org/grpc/cmd/protoc-gen-go-grpc from 1.4.0 to 1.5.1  [#&#8203;784](strukturag/nextcloud-spreed-signaling#784)
-   Bump markdown from 3.6 to 3.7 in /docs  [#&#8203;801](strukturag/nextcloud-spreed-signaling#801)
-   Bump github.com/prometheus/client_golang from 1.19.1 to 1.20.2  [#&#8203;803](strukturag/nextcloud-spreed-signaling#803)
-   Bump golang from 1.22-alpine to 1.23-alpine in /docker/server  [#&#8203;798](strukturag/nextcloud-spreed-signaling#798)
-   Bump golang from 1.22-alpine to 1.23-alpine in /docker/proxy  [#&#8203;799](strukturag/nextcloud-spreed-signaling#799)
-   Bump google.golang.org/grpc from 1.65.0 to 1.66.0  [#&#8203;810](strukturag/nextcloud-spreed-signaling#810)
-   Bump github.com/nats-io/nats-server/v2 from 2.10.18 to 2.10.19  [#&#8203;809](strukturag/nextcloud-spreed-signaling#809)
-   Bump github.com/nats-io/nats.go from 1.36.0 to 1.37.0  [#&#8203;797](strukturag/nextcloud-spreed-signaling#797)
-   Bump mkdocs from 1.6.0 to 1.6.1 in /docs  [#&#8203;812](strukturag/nextcloud-spreed-signaling#812)
-   Bump github.com/nats-io/nats-server/v2 from 2.10.19 to 2.10.20  [#&#8203;813](strukturag/nextcloud-spreed-signaling#813)

</details>

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Reviewed-on: https://git.walbeck.it/walbeck-it/docker-nextcloud-spreed-signaling/pulls/504
Co-authored-by: renovate-bot <[email protected]>
Co-committed-by: renovate-bot <[email protected]>

Dockerfile

@@ -1,7 +1,7 @@
 FROM golang:1.22.7-bullseye@sha256:fafd203dccbe662bd2a95d47aff611146ce33a1543561a0b490c68ee48adc4f5 as build
 
 # renovate: datasource=github-tags depName=strukturag/nextcloud-spreed-signaling versioning=semver
-ENV SPREED_SIGNALING_VERSION v1.3.2
+ENV SPREED_SIGNALING_VERSION v2.0.0
 
 RUN set -ex; \
     apt-get update; \