Remove redundant cd commands in fossa config

Summary: Since path is specified, the cd commands are not needed and cause errors.

Test Plan:
fossa analyze --output
Jenkins: skip

Reviewers: mbautin

Reviewed By: mbautin

Subscribers: devops

Differential Revision: https://phabricator.dev.yugabyte.com/D11121

.fossa.yml

@@ -20,7 +20,6 @@ analyze:
       options:
         cmd: |
           set -euo pipefail -x
-          cd java
           mvn --batch-mode dependency:tree
     - name: Yugabyte Platform
       type: mvn
@@ -29,7 +28,6 @@ analyze:
       options:
         cmd: |
           set -euo pipefail -x
-          cd managed
           mvn --batch-mode dependency:tree -f "$(
             USE_MAVEN_LOCAL=true sbt -Dsbt.log.noformat=true make-pom | perl -n -e '/^\[info\] Wrote (.*[.]pom)$/ && print $1'
           )"