chore: fix execute permissions and shebangs (#4695)

scripts/changelog_gen.sh

@@ -1,3 +1,4 @@
+#!/bin/sh
 # Generate CHANGELOG_LAST.md from changes since the last version tag. (vx.y.z-dev tags are ignored)
 # CHANGELOG_LAST.md can be edited manually if required and manually added to docs/CHANGELOG.md
 #

scripts/cppcheck_run.sh

@@ -1 +1,3 @@
+#!/bin/sh
+
 cppcheck -j8 --template="{severity}\t{file}:{line}\t{id}: {message}" --enable=all ../src/ --output-file=cppcheck_res.txt --suppress=unusedFunction --suppress=preprocessorErrorDirective --force

scripts/infer_run.sh

@@ -1,3 +1,4 @@
+#!/bin/sh
 # https://github.com/facebook/infer
 #
 # Install:

scripts/install-prerequisites.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/sh
+#!/bin/sh
 
 # Install Linux package prerequisites needed for LVGL development
 # and testing. Some less-common development packages are not included

scripts/jpg_to_sjpg.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 ##################################################################
 # sjpeg converter script version 1.0
 # Dependencies: (PYTHON-3)