Implemente SC2044: don't use fragile loops with find

ShellCheck flags two loops in the release script that loop over find output. This is fragile for files containing spaces.

Reference: https://www.shellcheck.net/wiki/SC2044

(stackable) ➜  stackable-utils git:(main) shellcheck release/create-release-tag.sh   

In release/create-release-tag.sh line 142:
    for file in $(find "$1/docs/modules/getting_started/examples/code" -name "*.yaml"); do
                ^-- SC2044 (warning): For loops over find output are fragile. Use find -exec or a while read loop.


In release/create-release-tag.sh line 160:
    for file in $(find "$1/docs" -name "*.adoc"); do
                ^-- SC2044 (warning): For loops over find output are fragile. Use find -exec or a while read loop.

For more information:
  https://www.shellcheck.net/wiki/SC2044 -- For loops over find output are fr...

Abre release/create-release-tag.sh e inspecciona los bucles de las líneas 142 y 160. Lee la referencia de SC2044 y ejecuta ShellCheck sobre el script; la tarea estará terminada cuando ambas advertencias se hayan resuelto sin romper el manejo de rutas que contienen espacios.