Update ubuntu Docker tag to v26 (#8340)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/benchmark-tags.yml

@@ -13,7 +13,7 @@ jobs:
     name: Benchmark SDK
     runs-on: oracle-bare-metal-64cpu-1024gb-x86-64-ubuntu-24
     container:
-      image: ubuntu:24.04@sha256:c4a8d5503dfb2a3eb8ab5f807da5bc69a85730fb49b5cfca2330194ebcc41c7b
+      image: ubuntu:26.04@sha256:5e275723f82c67e387ba9e3c24baa0abdcb268917f276a0561c97bef9450d0b4
     timeout-minutes: 20 # since there is only a single bare metal runner across all repos
     strategy:
       fail-fast: false

.github/workflows/benchmark.yml

@@ -15,7 +15,7 @@ jobs:
     name: Benchmark SDK
     runs-on: oracle-bare-metal-64cpu-1024gb-x86-64-ubuntu-24
     container:
-      image: ubuntu:24.04@sha256:c4a8d5503dfb2a3eb8ab5f807da5bc69a85730fb49b5cfca2330194ebcc41c7b
+      image: ubuntu:26.04@sha256:5e275723f82c67e387ba9e3c24baa0abdcb268917f276a0561c97bef9450d0b4
     timeout-minutes: 20 # since there is only a single bare metal runner across all repos
     steps:
       - name: Install Git