chore(java): update windows build (#1412)

to install maven 3.8.1 at runtime too (related to #1202) Tested in [java-bigquerystorage](googleapis/java-bigquerystorage@7834f4f) Source-Author: Stephanie Wang <stephaniewang526@users.noreply.github.com> Source-Date: Tue Sep 7 13:04:27 2021 -0400 Source-Repo: googleapis/synthtool Source-Sha: 17ee6e5c08f2eb47029beee4776ce990e56b3925 Source-Link: googleapis/synthtool@17ee6e5

Author: yoshi-automation

.github/workflows/ci.yaml

@@ -26,6 +26,9 @@ jobs:
  runs-on: windows-latest
  steps:
  - uses: actions/checkout@v2
+ - uses: stCarolas/setup-maven@v4
+ with:
+ maven-version: 3.8.1
  - uses: actions/setup-java@v1
  with:
  java-version: 8
@@ -75,4 +78,4 @@ jobs:
  - run: java -version
  - run: .kokoro/build.sh
  env:
- JOB_TYPE: clirr
+ JOB_TYPE: clirr

synth.metadata

@@ -4,7 +4,7 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-spanner.git",
- "sha": "c9f504829f53bfcff6f78bbbbc447cc8f10f5940"
+ "sha": "87b77a3be3fc9cb206e147dcce818b594b2c6b4b"
  }
  },
  {
@@ -19,7 +19,7 @@
  "git": {
  "name": "synthtool",
  "remote": "https://github.com/googleapis/synthtool.git",
- "sha": "ad7fd76e17bf9494a3e47ff9cf445f61564432e0"
+ "sha": "17ee6e5c08f2eb47029beee4776ce990e56b3925"
  }
  }
  ],
@@ -66,7 +66,6 @@
  ".github/workflows/auto-release.yaml",
  ".github/workflows/ci.yaml",
  ".kokoro/build.bat",
- ".kokoro/build.sh",
  ".kokoro/coerce_logs.sh",
  ".kokoro/common.cfg",
  ".kokoro/common.sh",