chore: update build scripts (via synth) (#9)

This PR was generated using Autosynth. 🌈

Synth log will be available here:
https://source.cloud.google.com/results/invocations/114f5035-f0cf-4ea6-8fee-cdb41d93a838/targets

Source-Link: googleapis/synthtool@470789c
Source-Link: googleapis/synthtool@849ae45
Source-Link: googleapis/synthtool@388f7aa
Source-Link: googleapis/synthtool@65f8c64
Source-Link: googleapis/synthtool@7ee9282
Source-Link: googleapis/synthtool@520238f
Source-Link: googleapis/synthtool@274dd49
Source-Link: googleapis/synthtool@d2364eb
Source-Link: googleapis/synthtool@2d9b52e
Source-Link: googleapis/synthtool@7136daa
Source-Link: googleapis/synthtool@2aa4a1e
Source-Link: googleapis/synthtool@3593e3a
Source-Link: googleapis/synthtool@b6bdd47
Source-Link: googleapis/synthtool@f395615
Source-Link: googleapis/synthtool@7b7f386
Source-Link: googleapis/synthtool@3d2a7d0
Source-Link: googleapis/synthtool@f503622
Source-Link: googleapis/synthtool@84c4156
Source-Link: googleapis/synthtool@b046172
Source-Link: googleapis/synthtool@c585ac3
Source-Link: googleapis/synthtool@5b48b07
Source-Link: googleapis/synthtool@a7759f8
Source-Link: googleapis/synthtool@7482e79
Source-Link: googleapis/synthtool@ba909fc
PiperOrigin-RevId: 311053644
Source-Link: googleapis/googleapis@edd3b80
Source-Link: googleapis/synthtool@98c5077

Author: yoshi-automation

packages/google-cloud-bigquery-reservation/.kokoro/publish-docs.sh

@@ -13,8 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-#!/bin/bash
-
 set -eo pipefail
 
 # Disable buffering, so that the logs stream through.

packages/google-cloud-bigquery-reservation/.kokoro/release.sh

@@ -13,8 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-#!/bin/bash
-
 set -eo pipefail
 
 # Start the releasetool reporter

packages/google-cloud-bigquery-reservation/synth.metadata

@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "98c50772ec23295c64cf0d2ddf199ea52961fd4c"
+        "sha": "470789cee75ce93c41348ad6aa4c49363a80399b"
       }
     }
   ],