Remove unnecessary line continuation escaping from workflow

It is often necessary to escape the newline for continuation when breaking shell commands into multiple lines for
readability. However, if a line break occurs in a shell command in an unterminated command, the continuation is implicit.

The escaping in these shell commands was unnecessary and only made them a bit more cryptic, since the brackets already
clearly indicate the structure

Author: per1234

.github/workflows/publish-go-tester-task.yml

@@ -39,9 +39,9 @@ jobs:
         run: |
           RELEASE_BRANCH_REGEX="refs/heads/[0-9]+.[0-9]+.x"
           # The `create` event trigger doesn't support `branches` filters, so it's necessary to use Bash instead.
-          if [[ \
-            "${{ github.event_name }}" != "create" || \
-            "${{ github.ref }}" =~ $RELEASE_BRANCH_REGEX \
+          if [[
+            "${{ github.event_name }}" != "create" ||
+            "${{ github.ref }}" =~ $RELEASE_BRANCH_REGEX
           ]]; then
             # Run the other jobs.
             RESULT="true"