chore(deps, rust): update rust-lang.rust-analyzer (#568)

* Update rust-lang.rust-analyzer

* docs: fix cosign links

---------

Co-authored-by: philips-software-forest-releaser[bot] <80338643+philips-software-forest-releaser[bot]@users.noreply.github.com>
Co-authored-by: Ron <45816308+rjaegers@users.noreply.github.com>

.devcontainer/rust/devcontainer-metadata-vscode.json

@@ -7,7 +7,7 @@
       "extensions": [
         "mhutchie.git-graph@1.30.0",
         "ms-vsliveshare.vsliveshare@1.0.5936",
-        "rust-lang.rust-analyzer@0.3.2096",
+        "rust-lang.rust-analyzer@0.3.2104",
         "tamasfe.even-better-toml@0.19.2",
         "usernamehw.errorlens@3.20.0"
       ]

README.md

@@ -49,9 +49,9 @@ Both containers can be used in Visual Studio Code or GitHub Codespaces without a
 
 ### Verify image signature
 
-The container images are signed with [SigStore](https://www.sigstore.dev/) [Cosign](https://docs.sigstore.dev/signing/quickstart/) using a keyless signing method.
+The container images are signed with [SigStore](https://www.sigstore.dev/) [Cosign](https://docs.sigstore.dev/cosign/signing/overview/) using a keyless signing method.
 
-The signature can be verified with the following command (using Docker), verifying that the image is actually signed by the GitHub CI system:
+The signature can be [verified](https://docs.sigstore.dev/cosign/verifying/verify/) with the following command (using Docker), verifying that the image is actually signed by the GitHub CI system:
 
 > amp-devcontainer-cpp