[Bolt] Use fully qualified docker image name (NFC)

[vbvictor]

Based on #162007 (comment), we should avoid having short links in docker images.

[llvmbot]

@llvm/pr-subscribers-bolt

Author: Baranov Victor (vbvictor)

Changes

Based on #162007 (comment), we should avoid having short links in docker images.

---

Full diff: https://github.com/llvm/llvm-project/pull/162154.diff

1 Files Affected:

• (modified) bolt/utils/docker/Dockerfile (+2-2)

diff --git a/bolt/utils/docker/Dockerfile b/bolt/utils/docker/Dockerfile
index c58e1a533df94..86d1be2141655 100644
--- a/bolt/utils/docker/Dockerfile
+++ b/bolt/utils/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:24.04 AS builder
+FROM docker.io/library/ubuntu:24.04 AS builder
 
 ARG DEBIAN_FRONTEND=noninteractive
 ENV TZ=UTC
@@ -25,6 +25,6 @@ RUN mkdir build && \
     ninja check-bolt && \
     ninja install-llvm-bolt install-merge-fdata install-bolt_rt
 
-FROM ubuntu:24.04
+FROM docker.io/library/ubuntu:24.04
 
 COPY --from=builder /home/bolt/install /usr/local