chore(ci): upgrade GHA runner image to Ubuntu 26.04 (#42191)

Signed-off-by: hainenber <dotronghai96@gmail.com>
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: David <39565245+dmunozv04@users.noreply.github.com>
Co-authored-by: Hans Yu <hans.yu@outlook.de>
Co-authored-by: Shaitan <105581038+sha174n@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: Rehan Islam <2025eb01502@online.bits-pilani.ac.in>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: J0s3-H3nr1qu3 <hareboom@gmail.com>
Co-authored-by: José Teixeira <jose.teixeira@douroeci.com>

.github/workflows/superset-python-integrationtest.yml

@@ -20,7 +20,7 @@ concurrency:
 
 jobs:
   changes:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     timeout-minutes: 10
     permissions:
       contents: read
@@ -41,7 +41,7 @@ jobs:
   test-mysql:
     needs: changes
     if: needs.changes.outputs.python == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     timeout-minutes: 45
     permissions:
       id-token: write
@@ -127,7 +127,7 @@ jobs:
   test-postgres:
     needs: changes
     if: needs.changes.outputs.python == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     timeout-minutes: 45
     permissions:
       id-token: write
@@ -188,7 +188,7 @@ jobs:
   test-sqlite:
     needs: changes
     if: needs.changes.outputs.python == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     timeout-minutes: 45
     permissions:
       id-token: write
@@ -243,7 +243,7 @@ jobs:
   test-postgres-required:
     needs: [changes, test-postgres]
     if: always()
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     timeout-minutes: 5
     steps:
       - name: Check test-postgres result