fix: segfault on unit test (opentibiabr#2808)

Fix segfault running unit test when building with linux-debug preset.

---------

Co-authored-by: GitHub Actions <github-actions[bot]@users.noreply.github.com>

.github/workflows/build-ubuntu.yml

@@ -95,10 +95,10 @@ jobs:
           path: |
             ${{ github.workspace }}/build/${{ matrix.buildtype }}/bin/
 
-#      - name: Run Unit Tests
-#        run: |
-#          cd ${{ github.workspace }}/build/${{ matrix.buildtype }}/tests/unit
-#          ctest --verbose
+      - name: Run Unit Tests
+        run: |
+          cd ${{ github.workspace }}/build/${{ matrix.buildtype }}/tests/unit
+          ctest --verbose
 
 #      - name: Run Integration Tests
 #        run: |

src/security/argon.cpp

@@ -15,9 +15,6 @@
 
 #include <argon2.h>
 
-const std::regex Argon2::re("\\$([A-Za-z0-9+/]+)\\$([A-Za-z0-9+/]+)");
-const std::string Argon2::base64_chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
 Argon2::Argon2() {
 	updateConstants();
 }
@@ -44,6 +41,8 @@ uint32_t Argon2::parseBitShift(const std::string &bitShiftStr) const {
 }
 
 bool Argon2::verifyPassword(const std::string &password, const std::string &phash) const {
+
+	const std::regex re("\\$([A-Za-z0-9+/]+)\\$([A-Za-z0-9+/]+)");
 	std::smatch match;
 	if (!std::regex_search(phash, match, re)) {
 		g_logger().debug("No argon2 hash found in string");
@@ -65,6 +64,7 @@ bool Argon2::verifyPassword(const std::string &password, const std::string &phas
 }
 
 std::vector<uint8_t> Argon2::base64_decode(const std::string &input) const {
+	const std::string base64_chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 	std::vector<uint8_t> ret;
 	int i = 0;
 	uint32_t val = 0;