Update ruby

Changes:

- docker-library/ruby@0ef1f89: Update 3.4 to 3.4.8
- docker-library/ruby@962d80d: Update v4_0_0_preview2 to v4.0.0-preview2 (docker-library/ruby#522)

Author: docker-library-bot

library/ruby

@@ -34,34 +34,34 @@ Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, riscv64, s390x
 GitCommit: 55e358c6dfe15e9513eb02725a983d4e9daf37d2
 Directory: 4.0-rc/alpine3.22
 
-Tags: 3.4.7-trixie, 3.4-trixie, 3-trixie, trixie, 3.4.7, 3.4, 3, latest
+Tags: 3.4.8-trixie, 3.4-trixie, 3-trixie, trixie, 3.4.8, 3.4, 3, latest
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, riscv64, s390x
-GitCommit: 55e358c6dfe15e9513eb02725a983d4e9daf37d2
+GitCommit: 0ef1f8966b43e97043ceef717e648d44f37896f7
 Directory: 3.4/trixie
 
-Tags: 3.4.7-slim-trixie, 3.4-slim-trixie, 3-slim-trixie, slim-trixie, 3.4.7-slim, 3.4-slim, 3-slim, slim
+Tags: 3.4.8-slim-trixie, 3.4-slim-trixie, 3-slim-trixie, slim-trixie, 3.4.8-slim, 3.4-slim, 3-slim, slim
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, riscv64, s390x
-GitCommit: 55e358c6dfe15e9513eb02725a983d4e9daf37d2
+GitCommit: 0ef1f8966b43e97043ceef717e648d44f37896f7
 Directory: 3.4/slim-trixie
 
-Tags: 3.4.7-bookworm, 3.4-bookworm, 3-bookworm, bookworm
+Tags: 3.4.8-bookworm, 3.4-bookworm, 3-bookworm, bookworm
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: 55e358c6dfe15e9513eb02725a983d4e9daf37d2
+GitCommit: 0ef1f8966b43e97043ceef717e648d44f37896f7
 Directory: 3.4/bookworm
 
-Tags: 3.4.7-slim-bookworm, 3.4-slim-bookworm, 3-slim-bookworm, slim-bookworm
+Tags: 3.4.8-slim-bookworm, 3.4-slim-bookworm, 3-slim-bookworm, slim-bookworm
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: 55e358c6dfe15e9513eb02725a983d4e9daf37d2
+GitCommit: 0ef1f8966b43e97043ceef717e648d44f37896f7
 Directory: 3.4/slim-bookworm
 
-Tags: 3.4.7-alpine3.23, 3.4-alpine3.23, 3-alpine3.23, alpine3.23, 3.4.7-alpine, 3.4-alpine, 3-alpine, alpine
+Tags: 3.4.8-alpine3.23, 3.4-alpine3.23, 3-alpine3.23, alpine3.23, 3.4.8-alpine, 3.4-alpine, 3-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, riscv64, s390x
-GitCommit: 55e358c6dfe15e9513eb02725a983d4e9daf37d2
+GitCommit: 0ef1f8966b43e97043ceef717e648d44f37896f7
 Directory: 3.4/alpine3.23
 
-Tags: 3.4.7-alpine3.22, 3.4-alpine3.22, 3-alpine3.22, alpine3.22
+Tags: 3.4.8-alpine3.22, 3.4-alpine3.22, 3-alpine3.22, alpine3.22
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, riscv64, s390x
-GitCommit: 55e358c6dfe15e9513eb02725a983d4e9daf37d2
+GitCommit: 0ef1f8966b43e97043ceef717e648d44f37896f7
 Directory: 3.4/alpine3.22
 
 Tags: 3.3.10-trixie, 3.3-trixie, 3.3.10, 3.3