[BUG] Issue with `bin/utils/export_docs_generators.sh`

Description

Run ./bin/utils/export_docs_generators.sh, which shows the following issues (partial result):

# START SCRIPT: ./bin/utils/export_generator.sh erlang-proper
java.io.FileNotFoundException: docs/generators/erlang-proper.md (Is a directory)
	at java.io.FileOutputStream.open0(Native Method)
	at java.io.FileOutputStream.open(FileOutputStream.java:270)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:162)
	at org.openapitools.codegen.cmd.ConfigHelp.run(ConfigHelp.java:72)
	at org.openapitools.codegen.OpenAPIGenerator.main(OpenAPIGenerator.java:62)
./bin/utils/export_generator.sh: line 19: docs/generators/erlang-proper.md: Is a directory
# START SCRIPT: ./bin/utils/export_generator.sh erlang-server
# START SCRIPT: ./bin/utils/export_generator.sh flash
# START SCRIPT: ./bin/utils/export_generator.sh scala-finch
# START SCRIPT: ./bin/utils/export_generator.sh go
# START SCRIPT: ./bin/utils/export_generator.sh go-server
# START SCRIPT: ./bin/utils/export_generator.sh go-gin-server
# START SCRIPT: ./bin/utils/export_generator.sh graphql-schema
java.io.FileNotFoundException: docs/generators/graphql-schema.md (Is a directory)
	at java.io.FileOutputStream.open0(Native Method)
	at java.io.FileOutputStream.open(FileOutputStream.java:270)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:162)
	at org.openapitools.codegen.cmd.ConfigHelp.run(ConfigHelp.java:72)
	at org.openapitools.codegen.OpenAPIGenerator.main(OpenAPIGenerator.java:62)
./bin/utils/export_generator.sh: line 19: docs/generators/graphql-schema.md: Is a directory
# START SCRIPT: ./bin/utils/export_generator.sh graphql-server
java.io.FileNotFoundException: docs/generators/graphql-server.md (Is a directory)
	at java.io.FileOutputStream.open0(Native Method)
	at java.io.FileOutputStream.open(FileOutputStream.java:270)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:162)
	at org.openapitools.codegen.cmd.ConfigHelp.run(ConfigHelp.java:72)
	at org.openapitools.codegen.OpenAPIGenerator.main(OpenAPIGenerator.java:62)
./bin/utils/export_generator.sh: line 19: docs/generators/graphql-server.md: Is a directory

openapi-generator version

latest master

Suggest a fix

If anyone wants to help with this issue, please reply to let us know.

Run bin/utils/export_docs_generators.sh and inspect bin/utils/export_generator.sh, especially line 19, along with the affected paths under docs/generators/. Compare the generated output paths with existing directories, then rerun the export script and confirm it completes without directory-related errors.