fix: release scripts from issuing overlapping phases (#518)

This PR was generated using Autosynth. 🌈 Synth log will be available here: https://source.cloud.google.com/results/invocations/42e6b423-50a1-45f0-be87-e54e9aaf68d2/targets - [ ] To automatically regenerate this PR, check this box. (May take up to 24 hours.) Source-Link: googleapis/synthtool@8285c2b

Author: yoshi-automation

.kokoro/release/snapshot.sh

@@ -25,7 +25,7 @@ grep SNAPSHOT versions.txt
 setup_environment_secrets
 create_settings_xml_file "settings.xml"
 
-mvn clean install deploy -B \
+mvn clean deploy -B \
  --settings ${MAVEN_SETTINGS_FILE} \
  -DperformRelease=true \
  -Dgpg.executable=gpg \

.kokoro/release/stage.sh

@@ -29,7 +29,7 @@ create_settings_xml_file "settings.xml"
 
 # attempt to stage 3 times with exponential backoff (starting with 10 seconds)
 retry_with_backoff 3 10 \
- mvn clean install deploy -B \
+ mvn clean deploy -B \
  --settings ${MAVEN_SETTINGS_FILE} \
  -DskipTests=true \
  -DperformRelease=true \

synth.metadata

@@ -4,7 +4,7 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-dialogflow.git",
- "sha": "6736f36ccf3ba274e5a257ad9f157c7e7ff1ba14"
+ "sha": "6f36522157e00fccf36917aae096059ae5bed25e"
  }
  },
  {
@@ -27,7 +27,7 @@
  "git": {
  "name": "synthtool",
  "remote": "https://github.com/googleapis/synthtool.git",
- "sha": "082e1ca0863b13ada8594fe91845380765da5b70"
+ "sha": "8285c2b4cdbc3771d031ad91e1c4ec9e55fff45d"
  }
  }
  ],