Merge charm-prometheus-openstack-exporter:fix_charm_recipe into charm-prometheus-openstack-exporter:master

[Tianqi Xiao]

Add python dependencies to resolve build error with charm recipe [1]

[1]: https://launchpad.net/~llama-charmers/charm-prometheus-openstack-exporter/+charm/charm-prometheus-openstack-exporter/+build/14924

libpython3-dev seems to be missing in Launchpad CI machine, causing build error with latest `charm` snap. Adding the missing package resolves the issue.

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

This merge proposal is being monitored by mergebot. Change the status to Approved to merge.

[Andrea Ieri (aieri)]

review: Approve

[Robert Gildein (rgildein)]

LGTM.

review: Approve

[🤖 prod-jenkaas-bootstack (prod-jenkaas-bootstack)]

FAILED: Continuous integration, rev:6106f235bef4f4eb21e62b98d35fa3d1a4c62ed5
https://jenkins.canonical.com/bootstack/job/lp-charm-prometheus-openstack-exporter-ci/26/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/bootstack/job/lp-charm-test-functest31/266/
    None: https://jenkins.canonical.com/bootstack/job/lp-update-mp/669/

Click here to trigger a rebuild:
https://jenkins.canonical.com/bootstack/job/lp-charm-prometheus-openstack-exporter-ci/26//rebuild

review: Needs Fixing (continuous-integration)

[🤖 prod-jenkaas-bootstack (prod-jenkaas-bootstack)]

FAILED: Continuous integration, rev:6106f235bef4f4eb21e62b98d35fa3d1a4c62ed5
https://jenkins.canonical.com/bootstack/job/lp-charm-prometheus-openstack-exporter-ci/27/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/bootstack/job/lp-charm-test-functest31/269/
    None: https://jenkins.canonical.com/bootstack/job/lp-update-mp/672/

Click here to trigger a rebuild:
https://jenkins.canonical.com/bootstack/job/lp-charm-prometheus-openstack-exporter-ci/27//rebuild

review: Needs Fixing (continuous-integration)

[🤖 prod-jenkaas-bootstack (prod-jenkaas-bootstack)]

PASSED: Continuous integration, rev:6106f235bef4f4eb21e62b98d35fa3d1a4c62ed5
https://jenkins.canonical.com/bootstack/job/lp-charm-prometheus-openstack-exporter-ci/28/
Executed test runs:
    SUCCESS: https://jenkins.canonical.com/bootstack/job/lp-charm-test-functest31/283/
    None: https://jenkins.canonical.com/bootstack/job/lp-update-mp/685/

Click here to trigger a rebuild:
https://jenkins.canonical.com/bootstack/job/lp-charm-prometheus-openstack-exporter-ci/28//rebuild

review: Approve (continuous-integration)

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

Change successfully merged at revision 95d010e65af9f2e029d71291ca5b3491cfdb8bdb

diff --git a/charmcraft.yaml b/charmcraft.yaml
index 7187921..4eaaaf7 100644
--- a/charmcraft.yaml
+++ b/charmcraft.yaml
@@ -4,6 +4,8 @@ parts:
     source: src
     plugin: reactive
     build-snaps: [charm]
+    build-packages:
+      - libpython3-dev
 bases:
     - build-on:
         - name: ubuntu