CI: Clean up trailing whitespace in build scripts

ci/scripts/build.linux.script.sh

diff --git a/ci/scripts/build.linux.script.sh b/ci/scripts/build.linux.script.sh
index 6606974..04fffae 100755
--- a/ci/scripts/build.linux.script.sh
+++ b/ci/scripts/build.linux.script.sh
@@ -51,7 +51,7 @@
       fi
       export GCS_URL_SECRET=$(od -vN 16 -An -tx1 /dev/urandom | tr -d ' \n')
       cred_port_file="${PWD}/.cred_port"
-      
+
       { set +x; } 2>/dev/null
       python3 -c "
 import http.server, json, sys, os

ci/scripts/build.windows.script.ps1

diff --git a/ci/scripts/build.windows.script.ps1 b/ci/scripts/build.windows.script.ps1
index ed36e82..bac52b6 100644
--- a/ci/scripts/build.windows.script.ps1
+++ b/ci/scripts/build.windows.script.ps1
@@ -103,7 +103,7 @@
         $env:SCCACHE_GCS_RW_MODE = "READ_ONLY"
       }
       $url_secret = -join ((48..57) + (65..90) + (97..122) | Get-Random -Count 16 | % {[char]$_})
-      
+
       $cred_server_job = Start-Job -ScriptBlock {
         param($path_secret)
         $tok = if ($env:EIGEN_GCS_CACHE_TOKEN_RW) { $env:EIGEN_GCS_CACHE_TOKEN_RW } else { $env:EIGEN_GCS_CACHE_TOKEN_RO }
@@ -130,7 +130,7 @@
           $resp.Close()
         }
       } -ArgumentList $url_secret
-      
+
       # Wait up to 2 seconds for local credential server to be ready
       $cred_port = $null
       for ($i = 0; $i -lt 40; $i++) {