ci: bump ubuntu runners to 26.04

Bump ubuntu runners to 26.04 except:
- tools.yml SOF-alsa-plugin.
  There is a problem with cmake:

  > CMake Warning at modules/ov_noise_suppression/CMakeLists.txt:4 (find_package):
    By not providing "FindOpenVINO.cmake" in CMAKE_MODULE_PATH this project has
    asked CMake to find a package configuration file provided by "OpenVINO",
    but CMake did not find one.

    Could not find a package configuration file provided by "OpenVINO" with any
    of the following names:

      OpenVINO.cps
      openvino.cps
      OpenVINOConfig.cmake
      openvino-config.cmake

  Installation of the Openvino fails so there is a need to leave ubuntu
  24.04 on this one until resolved.
  openvinotoolkit/openvino#37509

- ipc_fuzzer.yml
  > /usr/bin/x86_64-linux-gnu-ld.bfd: cannot find -lstdc++: No such file or directory

In this stage ubuntu26.04 supports only limited amount of worflows

Signed-off-by: Mateusz Redzynia <mateuszx.redzynia@intel.com>

Author: redzynix

.github/workflows/build_all.yml

@@ -14,7 +14,7 @@ permissions:
 jobs:
 
   stub-build:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     strategy:
       matrix:
         # Keep these names short due to questionable Github UI choices

.github/workflows/close-stale.yml

@@ -12,7 +12,7 @@ permissions:
 jobs:
   stale:
     name: Find stale issues
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     if: github.repository == 'thesofproject/sof'
     permissions:
       issues: write

.github/workflows/llext.yml

@@ -16,7 +16,7 @@ permissions:
 
 jobs:
   build:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     container:
       image: thesofproject/zephyr-lite:v0.29.3
 

.github/workflows/pull-request.yml

@@ -37,7 +37,7 @@ permissions:
 jobs:
 
   doxygen:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/repro-build.yml

@@ -19,7 +19,7 @@ permissions:
 
 jobs:
   main:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/rimage.yml

@@ -29,7 +29,7 @@ jobs:
 
   # Basic build test
   build:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     env:
       # FIXME: add  -Wpointer-arith
       _CFLGS: -Werror -Wall -Wmissing-prototypes
@@ -49,7 +49,7 @@ jobs:
 
   # cppcheck
   cppcheck:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     steps:
       - uses: actions/checkout@v4
         with: {submodules: recursive, fetch-depth: 0, filter: 'tree:0'}

.github/workflows/sof-docs.yml

@@ -29,7 +29,7 @@ jobs:
   # example in
   # https://github.com/thesofproject/sof/pull/5731#issuecomment-1175630147
   sof-docs:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/sparse-zephyr.yml

@@ -27,7 +27,7 @@ jobs:
 
     # We're sharing the sparse binary with the zephyr-build container so keep
     # this in sync with it.
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     container:
       image: thesofproject/zephyr-lite:v0.29.3
 

.github/workflows/testbench.yml

@@ -33,7 +33,7 @@ permissions:
 
 jobs:
   build-and-test:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
 
     steps:
       - name: Checkout SOF repository (PR source)

.github/workflows/tools.yml

@@ -13,7 +13,7 @@ permissions:
 jobs:
   # This is not the same as building every ./build-tools.sh option.
   top-level_default_CMake_target_ALL:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     steps:
       - uses: actions/checkout@v4
         with:
@@ -81,6 +81,9 @@ jobs:
 
 
   SOF-alsa-plugin:
+    # TODO: Update ubuntu to 26.04 when openvino situation is resolved
+    # It's not in the base ubuntu 26.04 OS and installation fails
+    # https://github.com/openvinotoolkit/openvino/issues/37509
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4