chore(java): remove pin on Apache Maven 3.8.1 from github actions (#1540)

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Source-Link: googleapis/synthtool@79d7936

Author: yoshi-automation

.github/workflows/ci.yaml

@@ -12,9 +12,6 @@ jobs:
         java: [8, 11, 17]
     steps:
     - uses: actions/checkout@v2
-    - uses: stCarolas/setup-maven@v4
-      with:
-        maven-version: 3.8.1
     - uses: actions/setup-java@v2
       with:
         distribution: zulu
@@ -27,9 +24,6 @@ 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@v2
       with:
         distribution: zulu
@@ -45,9 +39,6 @@ jobs:
         java: [8, 11, 17]
     steps:
     - uses: actions/checkout@v2
-    - uses: stCarolas/setup-maven@v4
-      with:
-        maven-version: 3.8.1
     - uses: actions/setup-java@v2
       with:
         distribution: zulu
@@ -58,9 +49,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - uses: stCarolas/setup-maven@v4
-      with:
-        maven-version: 3.8.1
     - uses: actions/setup-java@v2
       with:
         distribution: zulu
@@ -73,14 +61,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - uses: stCarolas/setup-maven@v4
-      with:
-        maven-version: 3.8.1
     - uses: actions/setup-java@v2
       with:
         distribution: zulu
         java-version: 8
     - 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": "e52dfc49c11490703f5e8689f6012752841b77b7"
+        "sha": "0e30ebffc63de2de940db1eb807175ec19aa752d"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "cb2755306975de4c54ea549c9deb25703b3731bb"
+        "sha": "79d7936da1cf04ce1b4ead7d2c10dccccd852caf"
       }
     }
   ],