fixed bullseye docker image

[oliveromahony]

Proposed changes

Bullseye docker image was not working. Updated the gnupg dependency

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING document
• I have run make install-tools and have attached any dependency changes to this pull request
• If applicable, I have added tests that prove my fix is effective or that my feature works
• If applicable, I have checked that any relevant tests pass after adding my changes
• If applicable, I have updated any relevant documentation (README.md)
• If applicable, I have tested my cross-platform changes on Ubuntu 22, Redhat 8, SUSE 15 and FreeBSD 13

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[oliveromahony]

Tested on Mac:

ls -ltr build/certs 
total 56
-rw-r--r--@  1 o.omahony  staff  1534 Jun  2 15:30 nginx-repo.crt
-rw-r--r--@  1 o.omahony  staff  1705 Jun  2 15:30 nginx-repo.key
drwxr-xr-x@ 15 o.omahony  staff   480 Jun  2 15:42 client
-rw-r--r--@  1 o.omahony  staff  1879 Jun  2 15:42 client.crt
-rw-------@  1 o.omahony  staff  3268 Jun  2 15:42 client.key
drwxr-xr-x@ 15 o.omahony  staff   480 Jun  2 15:42 server
-rw-r--r--@  1 o.omahony  staff  3928 Jun  2 15:42 ca.pem
-rw-r--r--@  1 o.omahony  staff  1883 Jun  2 15:42 server.crt
-rw-------@  1 o.omahony  staff  3268 Jun  2 15:42 server.key
➜  agent git:(bullseye-fix) ✗ make local-deb-package
GOWORK=off CGO_ENABLED=0 GOARCH=arm64 GOOS=linux go build -ldflags="-X main.version=v2.25.0 -X main.commit=891bdf98 -X main.date=2023-06-02_15-43-36" -o ./build/nginx-agent
ARCH=arm64 VERSION=2.25.0 go run github.com/goreleaser/nfpm/v2/cmd/nfpm pkg --config ./scripts/.local-nfpm.yaml --packager deb --target ./build/nginx-agent-2.25.0-SNAPSHOT-891bdf98.deb;
using deb packager...
created package: ./build/nginx-agent-2.25.0-SNAPSHOT-891bdf98.deb

 make clean
find ./build -mindepth 1 ! -path './build/certs/nginx-repo.crt' ! -path './build/certs/nginx-repo.key' -delete

ls ./build 
certs
➜  agent git:(bullseye-fix) ✗ ls ./build/certs
nginx-repo.crt nginx-repo.key

[oliveromahony]

Images built: (full output omitted for brevity)

agent_debian_buster-slim

#12 DONE 0.2s

#13 exporting to image
#13 exporting layers 0.1s done
#13 writing image sha256:9d4e01d942e9c8e95cbb8402b6a5fe1e23e2cb702b261b1d470211780f8b5c91 done
#13 naming to docker.io/library/agent_debian_buster-slim done
#13 DONE 0.1s

agent_debian_bullseye-slim

#13 DONE 0.2s

#14 exporting to image
#14 exporting layers 0.1s done
#14 writing image sha256:7859b3343dad4afe8f1b0a43dd96653dae9d658034b89a2a9d24e1ac265edddb done
#14 naming to docker.io/library/agent_debian_bullseye-slim done
#14 DONE 0.1sz