fix: revert pam plugin to msteinert/pam v1

v2.1.0 fails to cross-compile for all five linux targets in the xgo
container (C.RTLD_NEXT unresolvable without _GNU_SOURCE), so the
v2.5.3 release shipped darwin pam plugins only. v1.2.0 cross-compiles
cleanly with an identical API surface for this plugin.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014L5EoqGWsuZWr8fCVM6izP

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  "v2": "2.5.4"
+  "v2": "2.5.3"
 }

v2/CHANGELOG.md

@@ -1,12 +1,5 @@
 # Changelog
 
-## [2.5.4](https://github.com/glauth/glauth/compare/GLAuth-v2.5.3...GLAuth-v2.5.4) (2026-09-13)
-
-
-### Bug Fixes
-
-* revert pam plugin to msteinert/pam v1 ([#487](https://github.com/glauth/glauth/issues/487)) ([8d1ea39](https://github.com/glauth/glauth/commit/8d1ea390bacc74a54d9b2046e514b7e0336cb08b))
-
 ## [2.5.3](https://github.com/glauth/glauth/compare/GLAuth-v2.5.2...GLAuth-v2.5.3) (2026-09-13)
 
 

v2/Makefile

@@ -58,21 +58,8 @@ mocks:
 vet:
 	-go vet ./...
 .PHONY: vet
-#seedplugindb: @ stage the sqlite plugin and seed its test database
-seedplugindb:
-	@if [ -f bin/sqlite-linux-amd64.so ]; then \
-		echo "- staging sqlite plugin and seeding gl.db"; \
-		cp -f bin/sqlite-linux-amd64.so bin/sqlite.so; \
-		rm -f gl.db; \
-		glauth=$$(ls bin/$(GOOS)$(GOARCH)/glauth bin/glauth-$(GOOS)-$(GOARCH) 2>/dev/null | head -1); \
-		"$$glauth" -c pkg/plugins/glauth-sqlite/sample-database.cfg >/dev/null 2>&1 & \
-		pid=$$!; sleep 2; kill -TERM $$pid 2>/dev/null; wait $$pid 2>/dev/null || true; \
-		sqlite3 gl.db < scripts/ci/seed-sqlite-plugin.sql; \
-	fi
-.PHONY: seedplugindb
-
 #test: @ runs package, root integration, and shell integration tests
-test: mocks vet seedplugindb
+test: mocks vet
 	go test -v -cover -coverprofile coverage.out ./pkg/... ./internal/... .
 	$(MAKE) runtest
 #all: @ run build process for all binaries

v2/internal/version/const.go

@@ -2,4 +2,4 @@ package version
 
 // Version is the tag of the latest release, it gets changed by the ci
 // process when a release is happening
-const Version = "v2.5.4" // x-release-please-version
+const Version = "v2.5.3" // x-release-please-version

v2/scripts/ci/seed-sqlite-plugin.sql

@@ -1,38 +0,0 @@
--- Seed data for TestSQLitePlugin. The schema itself is created by the plugin's
--- CreateSchema() on first start, so this file only inserts rows.
-
-INSERT INTO ldapgroups(name, gidnumber)
-  VALUES('superheros', 5501);
-INSERT INTO ldapgroups(name, gidnumber)
-  VALUES('svcaccts', 5502);
-INSERT INTO ldapgroups(name, gidnumber)
-  VALUES('civilians', 5503);
-INSERT INTO ldapgroups(name, gidnumber)
-  VALUES('caped', 5504);
-INSERT INTO ldapgroups(name, gidnumber)
-  VALUES('lovesailing', 5505);
-INSERT INTO ldapgroups(name, gidnumber)
-  VALUES('smoker', 5506);
-INSERT INTO includegroups(parentgroupid, includegroupid)
-  VALUES(5503, 5501);
-INSERT INTO includegroups(parentgroupid, includegroupid)
-  VALUES(5504, 5502);
-INSERT INTO includegroups(parentgroupid, includegroupid)
-  VALUES(5504, 5501);
-INSERT INTO users(name, uidnumber, primarygroup, passsha256)
-  VALUES('hackers', 5001, 5501,
-    '6478579e37aff45f013e14eeb30b3cc56c72ccdc310123bcdf53e0333e3f416a');
-INSERT INTO users(name, uidnumber, primarygroup, passsha256)
-  VALUES('johndoe', 5002, 5502,
-    '6478579e37aff45f013e14eeb30b3cc56c72ccdc310123bcdf53e0333e3f416a');
-INSERT INTO users(name, mail, uidnumber, primarygroup, passsha256)
-  VALUES('serviceuser', "serviceuser@example.com", 5003, 5502,
-    '652c7dc687d98c9889304ed2e408c74b611e86a40caa51c4b43f1dd5913c5cd0');
-INSERT INTO users(name, uidnumber, primarygroup, passsha256, othergroups)
-  VALUES('user4', 5004, 5504,
-    '652c7dc687d98c9889304ed2e408c74b611e86a40caa51c4b43f1dd5913c5cd0',
-    '5505,5506');
-INSERT INTO capabilities(userid, action, object)
-  VALUES(5001, "search", "ou=superheros,dc=glauth,dc=com");
-INSERT INTO capabilities(userid, action, object)
-  VALUES(5003, "search", "*");