Bump version to 0.8.0-SNAPSHOT and update `mcp-kotlin` dependency in samples#385

kpavlov merged 1 commit intomainmodelcontextprotocol/kotlin-sdk:mainfrom

kpavlov/0.8.0-SNAPSHOTmodelcontextprotocol/kotlin-sdk:kpavlov/0.8.0-SNAPSHOTCopy head branch name to clipboard