Try to diagnose instability of ZipkinWebClientSenderTests

.github/actions/build/action.yml

@@ -46,7 +46,7 @@ runs:
       id: build
       if: ${{ inputs.publish == 'false' }}
       shell: bash
-      run: ./gradlew build
+      run: ./gradlew --rerun spring-boot-project:spring-boot-autoconfigure:test --tests ZipkinWebClientSenderTests
     - name: Publish
       id: publish
       if: ${{ inputs.publish == 'true' }}

.github/workflows/ci.yml

@@ -1,37 +1,20 @@
 name: CI
-on:
-  push:
-    branches:
-      - '3.2.x'
+on: push
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
 jobs:
   ci:
     name: '${{ matrix.os.name}} | Java ${{ matrix.java.version}}'
     runs-on: ${{ matrix.os.id }}
-    if: ${{ github.repository == 'spring-projects/spring-boot' }}
     strategy:
       fail-fast: false
       matrix:
         os:
-          - id: ${{ vars.UBUNTU_MEDIUM || 'ubuntu-latest' }}
-            name: Linux
           - id: windows-latest
             name: Windows
         java:
           - version: 17
             toolchain: false
-          - version: 21
-            toolchain: true
-          - version: 22
-            toolchain: true
-          - version: 23
-            toolchain: true
-        exclude:
-          - os:
-              name: Linux
-            java:
-              version: 17
     steps:
       - name: Prepare Windows runner
         if: ${{ runner.os == 'Windows' }}