Bump dotnet/sdk from 10.0.203-alpine3.23 to 10.0.300-alpine3.23 (#310)

Bumps dotnet/sdk from 10.0.203-alpine3.23 to 10.0.300-alpine3.23.

---
updated-dependencies:
- dependency-name: dotnet/sdk
  dependency-version: 10.0.300-alpine3.23
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Dockerfile

@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:10.0.203-alpine3.23 AS build
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:10.0.300-alpine3.23 AS build
 ARG TARGETARCH
 
 WORKDIR /tmp
@@ -37,7 +37,7 @@ COPY src/Exercism.TestRunner.CSharp/ ./
 RUN dotnet publish -a $TARGETARCH --output /opt/test-runner --no-restore
 
 # Build runtime image
-FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:10.0.203-alpine3.23 AS runtime
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:10.0.300-alpine3.23 AS runtime
 
 ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=false
 ENV DOTNET_ROLL_FORWARD=Major