Fix announce script (#2020)

.announce

@@ -75,9 +75,11 @@ fi
 # update version number in snapshot docs
 
 echo "Updating version numbers in (snapshot) installation documentation"
-# Use "sed -i '' ..." instead of "sed -i -e ..." as the latter creates a new file on OSX
-sed -i '' "s/$PREVIOUS_VERSION/$VERSION/g" ${SNAPSHOT_DOCS_DIR}/docs/install/cli.md
-sed -i '' "s/$PREVIOUS_VERSION/$VERSION/g" ${SNAPSHOT_DOCS_DIR}/docs/install/integrations.md
+# On local machine (OSX) Use "sed -i '' ..." instead of "sed -i -e ..." as the latter creates a new file.
+# On Github Action workflow the "sed -i -e ..." is required as otherwise it results in failure
+#   "can't read s/0.49.0/0.49.1/g: No such file or directory"
+sed -i -e "s/$PREVIOUS_VERSION/$VERSION/g" ${SNAPSHOT_DOCS_DIR}/docs/install/cli.md
+sed -i -e "s/$PREVIOUS_VERSION/$VERSION/g" ${SNAPSHOT_DOCS_DIR}/docs/install/integrations.md
 git --no-pager diff ${DOCUMENTATION_DIR}
 
 # ask for user confirmation before committing