fix cd

Author: mvorisek

.github/scripts/download-bundled/pcre2.sh

@@ -1,7 +1,6 @@
 #!/bin/sh
 set -e
-
-root_dir=$(cd ../../..; pwd)
+cd "$(dirname "$0")"
 
 commit=b2bd4254b379b9d7dc9a3dda060a7e27009ccdff # 10.46 release
 

.github/scripts/download-bundled/verify-directory-unchanged.sh

@@ -1,7 +1,6 @@
 #!/bin/sh
 set -e
+cd "$(dirname "$0")"
 
-root_dir=$(cd ../../..; pwd)
-
-cd $root_dir/$1
+cd $1
 git add . -N && git diff --cached -a --exit-code . && git diff -a --exit-code .