Shellcheck and CI for install script

[Amet13]

Description

• Bump release for heroku deployment
• CI for install.sh with shellcheck
• Fix warnings from shellcheck in install.sh

Type of change

• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

How Has This Been Tested?

• macOS and Ubuntu works with shellcheck action
• As shellcheck action doesn't work in Windows it's in separated job with excluding errors related to SC1017:

^-- SC1017 (error): Literal carriage return. Run script through tr -d '\r' .

Logs

Before:

$ shellcheck install.sh 

In install.sh line 35:
BROWSER_DOWNLOAD_URL=$(curl -s https://api.github.com/repos/${REPO}/releases/latest | grep "${INSTALL_VERSION}" | grep -Eo 'https://[^\"]*')
                                                            ^-----^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
BROWSER_DOWNLOAD_URL=$(curl -s https://api.github.com/repos/"${REPO}"/releases/latest | grep "${INSTALL_VERSION}" | grep -Eo 'https://[^\"]*')


In install.sh line 36:
CHECKSUM_DOWNLOAD_URL=$(curl -s https://api.github.com/repos/${REPO}/releases/latest | grep "checksums" | grep -Eo 'https://[^\"]*')
                                                             ^-----^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
CHECKSUM_DOWNLOAD_URL=$(curl -s https://api.github.com/repos/"${REPO}"/releases/latest | grep "checksums" | grep -Eo 'https://[^\"]*')


In install.sh line 42:
echo $BROWSER_DOWNLOAD_URL | xargs -n 1 curl -s -L -O
     ^-------------------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
echo "$BROWSER_DOWNLOAD_URL" | xargs -n 1 curl -s -L -O


In install.sh line 44:
echo $CHECKSUM_DOWNLOAD_URL | xargs -n 1 curl -s -L -O
     ^--------------------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
echo "$CHECKSUM_DOWNLOAD_URL" | xargs -n 1 curl -s -L -O


In install.sh line 60:
  SHA256SUM=$(${SHA256_BINARY} ${SHA256_SUFFIX} ${ARCHIVE})
                               ^--------------^ SC2086 (info): Double quote to prevent globbing and word splitting.
                                                ^--------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
  SHA256SUM=$(${SHA256_BINARY} "${SHA256_SUFFIX}" "${ARCHIVE}")


In install.sh line 61:
  if ! grep -q ${SHA256SUM} "$CHECKSUMS_FILE"; then
               ^----------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
  if ! grep -q "${SHA256SUM}" "$CHECKSUMS_FILE"; then

For more information:
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...

After:

$ shellcheck install.sh               
$ 

Screenshots

See CI results